Fault code dataset
Every fault code published on The Fault Code, in one table you can download, cite or load into a spreadsheet. Meanings are taken from the manufacturer manual or support page linked on each row.
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312 records, 19 brands, 5 categories (AC and heat pumps, Dishwashers, Furnaces, Tankless water heaters, Washing machines). Both files are generated from the same content as the code pages and rebuilt whenever a code changes. Columns: brand, category, equipment_type, code, display_pattern, meaning, professional_recommended, source_type, source_title, source_url, page_url, date_modified.
How to cite and reuse
Suggested citation: The Fault Code. “Fault code dataset.” The Fault Code, updated Nov 8, 2026. https://thefaultcode.com/data/
The meanings summarize text from manufacturer documents that belong to their publishers; the source link on each row is the authoritative reference. We have not yet chosen a reuse license for this compilation, so none is declared here. To ask about reuse, email [email protected]. This is general information, not professional advice; always check your exact model's manual.
All 312 codes
| Brand | Category | Code | Meaning | Source |
|---|---|---|---|---|
| Bryant | AC and heat pumps | 25 | Invalid model plug or inverter size. The outdoor control does not accept the model plug fitted to this inverter. There is no reset time on this row. | Manual (PDF) for Bryant 25 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 31 | High pressure switch open. The unit steps down capacity for each occurrence and elevates to fault 84 if it happens on the lowest stage. Reset time is 6 minutes, then the unit runs at a reduced stage. | Manual (PDF) for Bryant 31 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 32 | Low pressure trip. The control elevates this to fault 83 after 3 occurrences. Reset time is 6 minutes. The manual's example of the flash pattern is 3 short and 2 long for code 32, and Table 6 calls that low pressure switch open. | Manual (PDF) for Bryant 32 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 33 | Lost inverter communications, the local fault. It occurs after 2 minutes with no communication between the outdoor control and the inverter, and it elevates to fault 48 after 3 consecutive failures within 20 minutes or after 20 minutes of continuous loss. | Manual (PDF) for Bryant 33 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 46 | Brownout. Line voltage at the outdoor unit is low. Reset time is 6 minutes. | Manual (PDF) for Bryant 46 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 48 | Lost inverter communications, elevated from fault 33 after 3 occurrences. The outdoor control and the inverter are not talking. | Manual (PDF) for Bryant 48 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 53 | Outdoor air temperature sensor fault. If this sensor fails, the manual says defrost is initiated from coil temperature and time. There is no reset time on this row. | Manual (PDF) for Bryant 53 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 55 | Coil temperature sensor fault. If this sensor fails, the manual says defrost occurs at each time interval during heating and terminates after 2 minutes. | Manual (PDF) for Bryant 55 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 56 | Outdoor air and coil thermistors out of range. The manual calls this an event. If the thermistors are out of range, defrost occurs at each heating interval and terminates after 2 minutes. | Manual (PDF) for Bryant 56 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 83 | Low pressure lockout for 4 hours, elevated from fault 32 after 3 occurrences. The outdoor unit stops retrying the 6-minute trips. | Manual (PDF) for Bryant 83 (opens in a new tab) ↗ |
| Bryant | AC and heat pumps | 84 | High pressure lockout for 4 hours, elevated from fault 31 when the stage can no longer be lowered. | Manual (PDF) for Bryant 84 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 25 | Invalid model plug / inverter size: the control does not accept the model plug for this inverter. | Manual (PDF) for Carrier 25 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 31 | High pressure switch open: the unit steps down capacity for each occurrence and elevates to fault 84 if it happens on the lowest stage. Reset time is 6 minutes. | Manual (PDF) for Carrier 31 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 32 | Low pressure trip: the control elevates to fault 83 (low pressure lockout) after 3 occurrences. Reset time is 6 minutes. | Manual (PDF) for Carrier 32 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 33 | Lost inverter communications, the local fault. It is logged after 2 minutes with no communication between the outdoor control (AOC) and the inverter (MOC). It elevates to fault 48 after 3 consecutive failures within 20 minutes, or after 20 minutes of continuous loss of connection. The manual says to refer to fault code 48. | Manual (PDF) for Carrier 33 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 46 | Brownout event: low line voltage reaching the unit. Reset time is 6 minutes. | Manual (PDF) for Carrier 46 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 48 | Lost inverter communications (system malfunction): the outdoor control (AOC) and the inverter (MOC) have stopped communicating. Fault 33 is logged after 2 minutes with no communication and is elevated to 48 after 3 consecutive failures within 20 minutes, or 20 minutes of continuous loss of connection. | Manual (PDF) for Carrier 48 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 49 | Compressor overcurrent fault. The control elevates this to fault 95 after 5 occurrences. Reset time is 6 minutes. | Manual (PDF) for Carrier 49 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 53 | Outdoor air temperature sensor fault. | Manual (PDF) for Carrier 53 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 55 | Coil temperature sensor fault. | Manual (PDF) for Carrier 55 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 56 | Outdoor air temperature and outdoor coil temperature thermistors are out of range. The manual lists this as an event, not a lockout. | Manual (PDF) for Carrier 56 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 57 | Suction pressure sensor fault. The suction pressure transducer reading cannot be trusted. There is no reset time on this row. | Manual (PDF) for Carrier 57 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 65 | DC volts low, speed limiting. Supply voltage is under 197 V, or a loose wire or the inverter is limiting compressor speed. The table does not list a reset time. | Manual (PDF) for Carrier 65 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 83 | Low pressure lockout for 4 hours, elevated from fault 32 after 3 occurrences. | Manual (PDF) for Carrier 83 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 84 | High pressure lockout for 4 hours, elevated from fault 31 when the stage (speed) can no longer be lowered. | Manual (PDF) for Carrier 84 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 88 | Compressor and inverter lockout for 2 hours, elevated from fault 79 after 5 occurrences. The compressor failed to start often enough that the control stopped the retries. | Manual (PDF) for Carrier 88 (opens in a new tab) ↗ |
| Carrier | AC and heat pumps | 95 | Compressor overcurrent lockout for 2 hours, elevated from fault 49 after 5 occurrences. | Manual (PDF) for Carrier 95 (opens in a new tab) ↗ |
| Daikin | AC and heat pumps | A5 | Freeze-up protection or heating peak-cut: the indoor heat exchanger got too cold in cooling or too hot in heating. | Manual (PDF) for Daikin A5 (opens in a new tab) ↗ |
| Daikin | AC and heat pumps | A6 | Indoor fan motor fault: the DC fan is not reaching the speed the control asked for. | Manual (PDF) for Daikin A6 (opens in a new tab) ↗ |
| Daikin | AC and heat pumps | E7 | Outdoor fan lock: the outdoor fan does not start within 15 to 30 seconds. | Manual (PDF) for Daikin E7 (opens in a new tab) ↗ |
| Daikin | AC and heat pumps | EA | Four-way valve abnormality: room temperature and indoor coil temperature stay out of range for the mode. | Manual (PDF) for Daikin EA (opens in a new tab) ↗ |
| Daikin | AC and heat pumps | U4 | Signal transmission error between the indoor unit and the outdoor unit. | Manual (PDF) for Daikin U4 (opens in a new tab) ↗ |
| Fujitsu | AC and heat pumps | 11 | Serial communication error: the indoor unit is not receiving the serial signal from the outdoor unit. The operation lamp blinks once and the timer lamp blinks once. | Manual (PDF) for Fujitsu 11 (opens in a new tab) ↗ |
| Fujitsu | AC and heat pumps | 41 | Room temperature sensor error: the room-temperature thermistor is open or shorted. The operation lamp blinks 4 times and the timer lamp blinks once. | Manual (PDF) for Fujitsu 41 (opens in a new tab) ↗ |
| Fujitsu | AC and heat pumps | 51 | Indoor fan motor error: fan speed stayed below one-third of the target for more than 56 seconds. The operation lamp blinks 5 times and the timer lamp blinks once. | Manual (PDF) for Fujitsu 51 (opens in a new tab) ↗ |
| Fujitsu | AC and heat pumps | 63 | Inverter error: the outdoor unit received an error from the inverter board. The operation lamp blinks 6 times and the timer lamp blinks 3 times. | Manual (PDF) for Fujitsu 63 (opens in a new tab) ↗ |
| Fujitsu | AC and heat pumps | 99 | 4-way valve error: heat-exchanger temperature and room temperature stay too far apart for the mode. The operation lamp blinks 9 times and the timer lamp blinks 9 times. | Manual (PDF) for Fujitsu 99 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | 01 / L1 | Low pressure cutout: the low pressure switch tripped 3 times within the same thermostat call, so the compressor and outdoor fan are off. | Manual (PDF) for Goodman 01 / L1 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | 02 / L2 | High side fault: four consecutive compressor protector trips with average run time between trips of more than 1 minute and less than 15 minutes, with the low and high pressure switches closed. | Manual (PDF) for Goodman 02 / L2 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | 03 | Short cycling: the outdoor unit is cycling on and off too quickly. | Manual (PDF) for Goodman 03 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | 04 | Locked rotor: the compressor is not turning properly. | Manual (PDF) for Goodman 04 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | 05 | Open circuit. The compressor and outdoor fan have been off for more than 4 hours, and both pressure switches are closed. | Manual (PDF) for Goodman 05 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | 06 | Open start circuit. The compressor and outdoor fan are off, and both pressure switches are closed. | Manual (PDF) for Goodman 06 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | 07 | Open run circuit. The compressor and outdoor fan are off, and both pressure switches are closed. | Manual (PDF) for Goodman 07 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | 08 | No line voltage. The unit may appear to be operating normally, and the compressor protector may be open so the compressor and outdoor fan are off. | Manual (PDF) for Goodman 08 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | 09 | Low pilot voltage. The air conditioner or heat pump may appear to be operating normally. The chart's note says the control detects secondary voltage less than 18 VAC. | Manual (PDF) for Goodman 09 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | A2 | Outdoor air temperature sensor fault. The integrated control module shows A2. The air conditioner or heat pump may show only this code, with no separate symptom line on this row. | Manual (PDF) for Goodman A2 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | A3 | Outdoor coil temperature sensor fault. The chart says the heat pump fails to operate in heating mode, and the display shows A3. | Manual (PDF) for Goodman A3 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | b0 | Circulator blower motor is not running when it should be. The air conditioner or heat pump fails to operate, and the display shows b0. | Manual (PDF) for Goodman b0 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | b9 | Airflow is lower than demanded. The air conditioner or heat pump operates at reduced performance, or in low stage when high stage was expected. The display shows b9. | Manual (PDF) for Goodman b9 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | d0 | Data not yet on the network. The air conditioner or heat pump fails to operate. | Manual (PDF) for Goodman d0 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | d1 | Invalid data on the network. The air conditioner or heat pump fails to operate. | Manual (PDF) for Goodman d1 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | d2 | System mismatch: the outdoor and indoor units are not an acceptable combination, or the airflow trim settings are set to a prohibited value. | Manual (PDF) for Goodman d2 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | d3 | Configuration mismatch. The air conditioner or heat pump fails to operate. | Manual (PDF) for Goodman d3 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | d4 | Invalid shared data. The air conditioner or heat pump fails to operate. The chart says the code clears once data is loaded. | Manual (PDF) for Goodman d4 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | E5 | Open fuse: the low-voltage fuse on the control is blown. | Manual (PDF) for Goodman E5 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | EE | Board misoperation: the manual lists welded compressor relay contacts as the error condition. | Manual (PDF) for Goodman EE (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | H8 | High line voltage: the unit may seem to run normally, but the compressor protector may be open (compressor and outdoor fan off). | Manual (PDF) for Goodman H8 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | L6 | Open start-circuit lockout. The open start circuit was detected 4 times, with a 5-minute delay between each detection. The compressor and outdoor fan are off. | Manual (PDF) for Goodman L6 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | L7 | Open run-circuit lockout. The open run circuit was detected 4 times, with a 5-minute delay between each detection. The compressor and outdoor fan are off. | Manual (PDF) for Goodman L7 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | L8 | Low line voltage: the supply voltage to the outdoor unit is below the specified range. | Manual (PDF) for Goodman L8 (opens in a new tab) ↗ |
| Goodman | AC and heat pumps | P0 | Compressor protector open. The compressor is off. | Manual (PDF) for Goodman P0 (opens in a new tab) ↗ |
| Mitsubishi | AC and heat pumps | 2 blinks | Indoor coil or room thermistor fault: the sensor is shorted or open. The left lamp blinks twice, then pauses 2.5 seconds. | Manual (PDF) for Mitsubishi 2 blinks (opens in a new tab) ↗ |
| Mitsubishi | AC and heat pumps | 3 blinks | Indoor fan motor fault: the fan is not reporting rotation. The left lamp blinks 3 times, then pauses 2.5 seconds. | Manual (PDF) for Mitsubishi 3 blinks (opens in a new tab) ↗ |
| Mitsubishi | AC and heat pumps | 5 blinks | Outdoor power system fault: the compressor stopped three times for overcurrent or start-up failure within a minute of starting. The left lamp blinks 5 times. | Manual (PDF) for Mitsubishi 5 blinks (opens in a new tab) ↗ |
| Mitsubishi | AC and heat pumps | 7 blinks | Outdoor control fault: the inverter board or outdoor control board cannot read its memory. The left lamp blinks 7 times. | Manual (PDF) for Mitsubishi 7 blinks (opens in a new tab) ↗ |
| Mitsubishi | AC and heat pumps | Continuous blink | Miswiring or serial signal: the outdoor unit's serial signal was missing for 6 minutes. The left lamp blinks 0.5 second on and 0.5 second off, with no counted pause. | Manual (PDF) for Mitsubishi Continuous blink (opens in a new tab) ↗ |
| Bosch | Dishwashers | E01 | Heat pump motor circuit fault at the main control board. | Support page for Bosch E01 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E09 | Heat pump internal heater fault. | Support page for Bosch E09 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E12 | Limescale build-up in the heat pump. | Support page for Bosch E12 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E14 | Flow meter failure: Bosch says E14 indicates a flow meter failure or an issue with water flowing into the dishwasher or the filling system. | Support page for Bosch E14 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E15 | Leakage protection activated: the safety switch has detected water in the base of the dishwasher. | Support page for Bosch E15 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E16 / E17 | Water inflow problem: water may not be able to enter the dishwasher or the filling system. | Support page for Bosch E16 / E17 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E18 | Water flow problem: the water level is too low, or water is not being pumped correctly. | Support page for Bosch E18 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E19 | Detergent dispenser solenoid circuit fault. | Support page for Bosch E19 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E20 | Heat pump internal heater fault. Bosch uses this same sentence for E09. | Support page for Bosch E20 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E21 | Heat pump blocked: Bosch says E21 means the dishwasher's heat pump is blocked. | Support page for Bosch E21 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E22 | Blocked filter: food particles have clogged the dishwasher filter, which needs cleaning regularly. | Support page for Bosch E22 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E23 | Drain pump problem: Bosch says E23 indicates an issue with the drain pump, which happens when the pump is blocked, clogged, or faulty. | Support page for Bosch E23 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E24 | Not draining properly: the drain filter is blocked. | Support page for Bosch E24 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E25 | Drain pump blocked, or the drain pump cover is loose or missing. | Support page for Bosch E25 (opens in a new tab) ↗ |
| Bosch | Dishwashers | E27 | Low supply voltage: Bosch says the house power supply to the dishwasher is too low. | Support page for Bosch E27 (opens in a new tab) ↗ |
| GE | Dishwashers | 999 | Control reset needed, or a possible leak: on most models 999 means the control needs to be reset, but on models with the Floor Protect with Alert feature GE says it indicates a possible leak. | Support page for GE 999 (opens in a new tab) ↗ |
| GE | Dishwashers | C1 | Pump-out during drain has exceeded 2 minutes. | Support page for GE C1 (opens in a new tab) ↗ |
| GE | Dishwashers | C2 | The total pump-out cycle exceeds 7 minutes. | Support page for GE C2 (opens in a new tab) ↗ |
| GE | Dishwashers | C3 | The dishwasher will not drain. | Support page for GE C3 (opens in a new tab) ↗ |
| GE | Dishwashers | C4 | The machine filled twice after a power failure: float switch stuck or failed, or clogged drain or sump. | Support page for GE C4 (opens in a new tab) ↗ |
| GE | Dishwashers | C5 | The pump-out time is too short. | Support page for GE C5 (opens in a new tab) ↗ |
| GE | Dishwashers | C6 | Water temperature is too low: the water coming into the dishwasher is below the 120°F GE requires. | Support page for GE C6 (opens in a new tab) ↗ |
| GE | Dishwashers | C7 | Water temperature sensor circuit failure: GE says the dishwasher's water temperature sensor circuit has become inoperative. | Support page for GE C7 (opens in a new tab) ↗ |
| GE | Dishwashers | C8 | Detergent cup blocked: something is stopping the detergent cup from opening fully. | Support page for GE C8 (opens in a new tab) ↗ |
| GE | Dishwashers | H2O | Low water situation. | Support page for GE H2O (opens in a new tab) ↗ |
| LG | Dishwashers | AE | Leakage or overfilling error: the water supply exceeded the standard amount or a leak was detected. The dishwasher keeps draining to protect the floor. | Support page for LG AE (opens in a new tab) ↗ |
| LG | Dishwashers | bE | Bubble error: oversudsing was detected, and the dishwasher stops to prevent leaks. | Support page for LG bE (opens in a new tab) ↗ |
| LG | Dishwashers | CL | Control Lock is on: LG says CL is not a fault. The control panel is locked, so buttons cannot be pressed and cycles and options cannot be selected. | Support page for LG CL (opens in a new tab) ↗ |
| LG | Dishwashers | HE | Heater error: the heater that heats the dishwasher's water is not heating it, or the water overheated above 90°C (194°F). | Support page for LG HE (opens in a new tab) ↗ |
| LG | Dishwashers | IE | Water inlet error: the specified amount of water was not supplied to the tub. | Support page for LG IE (opens in a new tab) ↗ |
| LG | Dishwashers | LE | Cleaning motor error: LG says LE may appear when the cleaning motor is not functioning normally. | Support page for LG LE (opens in a new tab) ↗ |
| LG | Dishwashers | nE | The impeller is not spinning normally. LG says this can happen when the impeller does not spin or when dishes touch it. | Support page for LG nE (opens in a new tab) ↗ |
| LG | Dishwashers | OE | Outlet error: the tub is not fully drained. | Support page for LG OE (opens in a new tab) ↗ |
| LG | Dishwashers | tE | Temperature sensor error: LG says tE can appear because of a temperature sensor contact problem or a sensor failure. | Support page for LG tE (opens in a new tab) ↗ |
| Samsung | Dishwashers | 1E | Clogged filter error (Waterwall models): water is not making it through the filter. On Rotary models the same code means high temperature in the heater. | Support page for Samsung 1E (opens in a new tab) ↗ |
| Samsung | Dishwashers | 3C | Pump operation error: the pump has failed. | Support page for Samsung 3C (opens in a new tab) ↗ |
| Samsung | Dishwashers | 3E | High temperature water supply error: the water is too hot. | Support page for Samsung 3E (opens in a new tab) ↗ |
| Samsung | Dishwashers | 4C | Water supply error: the dishwasher is not getting water at the pressure or temperature it needs. | Support page for Samsung 4C (opens in a new tab) ↗ |
| Samsung | Dishwashers | 5C | Drain error: the dishwasher can't drain. | Support page for Samsung 5C (opens in a new tab) ↗ |
| Samsung | Dishwashers | 7E | Waterwall reflector error: the WaterWall reflector (the vane that travels along the rail at the back of the tub) is unable to move. Something is blocking or holding it in place, or it was not reattached correctly. | Support page for Samsung 7E (opens in a new tab) ↗ |
| Samsung | Dishwashers | 9E | Low water level error: there is not enough water in the dishwasher. | Support page for Samsung 9E (opens in a new tab) ↗ |
| Samsung | Dishwashers | bE | Button error: the control panel detects a stuck button. | Support page for Samsung bE (opens in a new tab) ↗ |
| Samsung | Dishwashers | CE | Communication error: the control panel is unable to communicate with the rest of the dishwasher. | Support page for Samsung CE (opens in a new tab) ↗ |
| Samsung | Dishwashers | HC | High temperature heater error: Samsung says the temperature inside the dishwasher is too hot. | Support page for Samsung HC (opens in a new tab) ↗ |
| Samsung | Dishwashers | HE | Heater error: Samsung says the temperature inside the dishwasher is being detected incorrectly. | Support page for Samsung HE (opens in a new tab) ↗ |
| Samsung | Dishwashers | LC | Leakage error: the dishwasher's leak sensor has detected moisture where it doesn't belong. The dishwasher turns itself on and will not turn off while it tries to drain the water away. | Support page for Samsung LC (opens in a new tab) ↗ |
| Samsung | Dishwashers | OC | Over-level water error: there is more water in the dishwasher than there should be. Samsung covers it with the same drain and overflow troubleshooting as 5C. | Support page for Samsung OC (opens in a new tab) ↗ |
| Samsung | Dishwashers | tE | Temperature sensor error: the temperature inside the dishwasher is being detected incorrectly. | Support page for Samsung tE (opens in a new tab) ↗ |
| Amana | Furnaces | EE0 | Furnace lockout after an excessive number of ignition retries (3 total): flame was not established, or flame was lost after it was established. | Manual (PDF) for Amana EE0 (opens in a new tab) ↗ |
| Amana | Furnaces | EE2 | Low stage pressure switch circuit is not closed. | Manual (PDF) for Amana EE2 (opens in a new tab) ↗ |
| Amana | Furnaces | EE3 | Primary limit circuit is open. The chart lists insufficient air over the heat exchanger. | Manual (PDF) for Amana EE3 (opens in a new tab) ↗ |
| Amana | Furnaces | EE4 | Flame was sensed with no call for heat. | Manual (PDF) for Amana EE4 (opens in a new tab) ↗ |
| Amana | Furnaces | EE5 | Open fuse, with no furnace operation. | Manual (PDF) for Amana EE5 (opens in a new tab) ↗ |
| Amana | Furnaces | EE6 | Flame sense microamp signal is low. | Manual (PDF) for Amana EE6 (opens in a new tab) ↗ |
| Amana | Furnaces | EE7 | Igniter circuit fault. The furnace fails to operate. | Manual (PDF) for Amana EE7 (opens in a new tab) ↗ |
| Amana | Furnaces | EE8 | High stage pressure switch circuit is closed at the start of the heating cycle. | Manual (PDF) for Amana EE8 (opens in a new tab) ↗ |
| Amana | Furnaces | EE9 | High stage pressure switch circuit is not closed. | Manual (PDF) for Amana EE9 (opens in a new tab) ↗ |
| Amana | Furnaces | EEd | Auxiliary limit switch in the blower compartment is open. The furnace fails to operate. | Manual (PDF) for Amana EEd (opens in a new tab) ↗ |
| Amana | Furnaces | EEF | Auxiliary limit switch (condensate switch) is open. The furnace fails to operate. | Manual (PDF) for Amana EEF (opens in a new tab) ↗ |
| American Standard | Furnaces | E2.1 | Retry exceeded: flame was never sensed. One-hour lockout after 3 times. | Manual (PDF) for American Standard E2.1 (opens in a new tab) ↗ |
| American Standard | Furnaces | E2.2 | Recycles exceeded: flame was sensed and then lost. One-hour lockout after 10 times. | Manual (PDF) for American Standard E2.2 (opens in a new tab) ↗ |
| American Standard | Furnaces | E2.3 | 1st stage gas valve was not energized when it should be, and that fault was exceeded after 10 times. | Manual (PDF) for American Standard E2.3 (opens in a new tab) ↗ |
| American Standard | Furnaces | E3.1 | Shorted pressure switch, 1st stage. | Manual (PDF) for American Standard E3.1 (opens in a new tab) ↗ |
| American Standard | Furnaces | E3.2 | Open pressure switch, 1st stage. | Manual (PDF) for American Standard E3.2 (opens in a new tab) ↗ |
| American Standard | Furnaces | E3.4 | Open pressure switch, 2nd stage. | Manual (PDF) for American Standard E3.4 (opens in a new tab) ↗ |
| American Standard | Furnaces | E04 | Open limit: the main thermal limit, a rollout switch, or the reverse airflow switch. | Manual (PDF) for American Standard E04 (opens in a new tab) ↗ |
| American Standard | Furnaces | E05 | Flame was detected when it should not be present. | Manual (PDF) for American Standard E05 (opens in a new tab) ↗ |
| American Standard | Furnaces | E6.3 | Igniter fault: the igniter relay fails, or the igniter is open. | Manual (PDF) for American Standard E6.3 (opens in a new tab) ↗ |
| American Standard | Furnaces | E7.1 | The 1st stage gas valve (MVL) is energized when it should be off. | Manual (PDF) for American Standard E7.1 (opens in a new tab) ↗ |
| American Standard | Furnaces | E08 | Flame current is low, but still strong enough to allow operation. | Manual (PDF) for American Standard E08 (opens in a new tab) ↗ |
| American Standard | Furnaces | E09 | Open inducer limit switch, or open condensate pressure switch. | Manual (PDF) for American Standard E09 (opens in a new tab) ↗ |
| American Standard | Furnaces | E12 | Open fuse. The control diagram in this installer's guide labels the low-voltage fuse as 5 amp. | Manual (PDF) for American Standard E12 (opens in a new tab) ↗ |
| Bryant | Furnaces | 12 | Blower on after power-up. The blower runs for 90 seconds if the furnace is powered up during a call for heat, or if that call opens during the blower on-delay. The same guide's sequence says the amber LED flashes 12 during those 90 seconds, then stays on continuously if no fault is found. | Manual (PDF) for Bryant 12 (opens in a new tab) ↗ |
| Bryant | Furnaces | 13 | Limit circuit lockout. The limit or flame rollout switch was open longer than 3 minutes, or 10 successive limit trips occurred during high heat. The control auto-resets after 3 hours. The manual says to see status code 33. | Manual (PDF) for Bryant 13 (opens in a new tab) ↗ |
| Bryant | Furnaces | 14 | Ignition lockout. The system failed to ignite gas and prove flame in 4 attempts. The control auto-resets after 3 hours. The manual says to see status code 34. | Manual (PDF) for Bryant 14 (opens in a new tab) ↗ |
| Bryant | Furnaces | 15 | Blower motor lockout. The blower failed to reach 250 RPM, or failed to communicate, within 30 seconds after being turned on, in two successive heating cycles. The control auto-resets after 3 hours. The chart says to see status code 41. | Manual (PDF) for Bryant 15 (opens in a new tab) ↗ |
| Bryant | Furnaces | 21 | Gas heating lockout. The control will not auto-reset. The chart says to check for a mis-wired gas valve or a defective control valve relay. | Manual (PDF) for Bryant 21 (opens in a new tab) ↗ |
| Bryant | Furnaces | 22 | Abnormal flame-proving signal. Flame is proved while the gas valve is de-energized. The inducer runs until the fault clears. The chart says to check for a leaky gas valve or a stuck-open gas valve. | Manual (PDF) for Bryant 22 (opens in a new tab) ↗ |
| Bryant | Furnaces | 23 | Pressure switch did not open. The chart says to check for obstructed pressure tubing or a pressure switch stuck closed. | Manual (PDF) for Bryant 23 (opens in a new tab) ↗ |
| Bryant | Furnaces | 24 | Secondary voltage fuse is open. The chart says to check for a short circuit in the secondary (24 V) wiring. | Manual (PDF) for Bryant 24 (opens in a new tab) ↗ |
| Bryant | Furnaces | 25 | Model selection or setup error. The model plug PL4 is missing or incorrect, or setup switch SW1-1 or SW1-6 is in the wrong position. If 25 flashes only four times at power-up, the control is using the model stored in memory. | Manual (PDF) for Bryant 25 (opens in a new tab) ↗ |
| Bryant | Furnaces | 31 | High-heat pressure switch or relay did not close, or it reopened. The chart says the control relay may be defective or the gas valve may be mis-wired, and it says to see status code 32. | Manual (PDF) for Bryant 31 (opens in a new tab) ↗ |
| Bryant | Furnaces | 32 | Low-heat pressure switch did not close, or it reopened. If it stays open longer than five minutes, the inducer shuts off for 15 minutes before a retry. If it opens during the blower on-delay, the blower comes on for the selected blower off-delay. | Manual (PDF) for Bryant 32 (opens in a new tab) ↗ |
| Bryant | Furnaces | 33 | Limit circuit fault. A limit, draft safeguard, flame rollout, or blocked-vent switch is open, or the furnace is in high-heat only after two successive low-heat limit trips. The blower runs for 4 minutes or until the switch remakes, whichever is longer. Open longer than 3 minutes becomes lockout 13. | Manual (PDF) for Bryant 33 (opens in a new tab) ↗ |
| Bryant | Furnaces | 34 | Ignition proving failure. The control tries three more times before lockout 14. If the flame signal is lost during the blower on-delay, the blower runs the selected off-delay. | Manual (PDF) for Bryant 34 (opens in a new tab) ↗ |
| Bryant | Furnaces | 35 | Gas valve fault on a Bryant 987MA modulating furnace. The modulating gas valve failed to respond to a command from the furnace control, or power to the gas valve electronics was interrupted. | Manual (PDF) for Bryant 35 (opens in a new tab) ↗ |
| Bryant | Furnaces | 41 | Blower motor fault. The blower failed to reach 250 RPM, or failed to communicate, within 30 seconds after being turned on or within 10 seconds during steady-state operation. | Manual (PDF) for Bryant 41 (opens in a new tab) ↗ |
| Bryant | Furnaces | 42 | Inducer motor fault on a Bryant 987MA modulating furnace. The inducer has not started within 20 seconds after a call for heat, the inducer RPM is outside its valid range, or the RPM signal was lost for 5 seconds during operation. | Manual (PDF) for Bryant 42 (opens in a new tab) ↗ |
| Bryant | Furnaces | 43 | Low-heat pressure switch is open while the high-heat pressure switch is closed. The chart says to check the pressure tubing, low inlet gas pressure if a low-gas-pressure switch is used, mis-wired switches, and a low-heat switch stuck open. | Manual (PDF) for Bryant 43 (opens in a new tab) ↗ |
| Bryant | Furnaces | 45 | Control circuitry lockout. The control auto-resets after a 1-hour lockout caused by a flame-sense circuit failure, a gas-valve relay stuck open, or a software check error. Reset power to clear the lockout. Replace the control if the code repeats. | Manual (PDF) for Bryant 45 (opens in a new tab) ↗ |
| Bryant | Furnaces | rapid flashing | Line voltage polarity is reversed, or, on twinned furnaces, the transformers are out of phase. The status table states the polarity fault. The rapid-flashing section is the twinning case. | Manual (PDF) for Bryant rapid flashing (opens in a new tab) ↗ |
| Carrier | Furnaces | 11 | No previous code. The service label says stored status codes are erased automatically after 72 hours. | Manual (PDF) for Carrier 11 (opens in a new tab) ↗ |
| Carrier | Furnaces | 12 | Blower on after power-up. The service label calls this normal operation. The blower runs for 90 seconds if the furnace was powered up during a call for heat, or if that call opened during the blower on-delay. | Manual (PDF) for Carrier 12 (opens in a new tab) ↗ |
| Carrier | Furnaces | 13 | Limit circuit lockout: a limit or flame rollout switch was open longer than 3 minutes. Control auto-resets after 3 hours (see code 33). | Manual (PDF) for Carrier 13 (opens in a new tab) ↗ |
| Carrier | Furnaces | 14 | Ignition lockout: system failed to ignite gas and prove flame in 4 attempts. Control auto-resets after 3 hours (see code 34). | Manual (PDF) for Carrier 14 (opens in a new tab) ↗ |
| Carrier | Furnaces | 21 | Gas heating lockout. Control will NOT auto-reset. | Manual (PDF) for Carrier 21 (opens in a new tab) ↗ |
| Carrier | Furnaces | 22 | Abnormal flame-proving signal: flame is proved while the gas valve is de-energized. Inducer runs until the fault is cleared. | Manual (PDF) for Carrier 22 (opens in a new tab) ↗ |
| Carrier | Furnaces | 23 | Pressure switch did not open. | Manual (PDF) for Carrier 23 (opens in a new tab) ↗ |
| Carrier | Furnaces | 24 | Secondary voltage (24 V) fuse is open. | Manual (PDF) for Carrier 24 (opens in a new tab) ↗ |
| Carrier | Furnaces | 31 | Low (LPS) or high (HPS) pressure switch did not close or reopened. | Manual (PDF) for Carrier 31 (opens in a new tab) ↗ |
| Carrier | Furnaces | 33 | Limit circuit fault: a limit or flame rollout switch is open. Becomes lockout 13 if open longer than 3 minutes. | Manual (PDF) for Carrier 33 (opens in a new tab) ↗ |
| Carrier | Furnaces | 34 | Ignition proving failure: flame not sensed during trial for ignition. Control tries 3 more times before lockout 14. | Manual (PDF) for Carrier 34 (opens in a new tab) ↗ |
| Carrier | Furnaces | 45 | Control circuitry lockout. Auto-resets after 1 hour. | Manual (PDF) for Carrier 45 (opens in a new tab) ↗ |
| Carrier | Furnaces | Continuous off | Status LED stays off: the service label says to check for 115 VAC at L1 and L2, and for 24 VAC at SEC-1 and SEC-2. | Manual (PDF) for Carrier Continuous off (opens in a new tab) ↗ |
| Carrier | Furnaces | Continuous on | Control has 24 VAC power: a steady amber LED is not a fault code. | Manual (PDF) for Carrier Continuous on (opens in a new tab) ↗ |
| Carrier | Furnaces | Rapid flashing | Line voltage (115 VAC) polarity reversed. If twinned, check 24 V transformer phasing. | Manual (PDF) for Carrier Rapid flashing (opens in a new tab) ↗ |
| Goodman | Furnaces | E10 | Grounding fault / poor neutral connection. | Manual (PDF) for Goodman E10 (opens in a new tab) ↗ |
| Goodman | Furnaces | E11 | Open rollout switch. | Manual (PDF) for Goodman E11 (opens in a new tab) ↗ |
| Goodman | Furnaces | EAF | Lost communication with the R-32 sensor: heating stops and only the fan runs because the furnace is in mitigation mode. | Manual (PDF) for Goodman EAF (opens in a new tab) ↗ |
| Goodman | Furnaces | EAL | R-32 sensor reports a refrigerant leak: heating stops and only the fan runs while the furnace is in mitigation mode. The chart says normal operation returns once a leak is not detected and the 5-minute delay is over. | Manual (PDF) for Goodman EAL (opens in a new tab) ↗ |
| Goodman | Furnaces | Ear | A2L relay fault: heating stops and only the fan runs while the furnace is in mitigation mode. The fault is on the furnace control board. | Manual (PDF) for Goodman Ear (opens in a new tab) ↗ |
| Goodman | Furnaces | EAS | R-32 sensor fault: heating stops and only the fan runs while the furnace is in mitigation mode. | Manual (PDF) for Goodman EAS (opens in a new tab) ↗ |
| Goodman | Furnaces | EbL | Blower current too low after the heat on-delay: the main blower is below the value the control expected, and the furnace goes to hard lockout. | Manual (PDF) for Goodman EbL (opens in a new tab) ↗ |
| Goodman | Furnaces | EbU | Blower current too high during pre-purge: the main blower is above the value the control expected, and the furnace goes to hard lockout. | Manual (PDF) for Goodman EbU (opens in a new tab) ↗ |
| Goodman | Furnaces | EE0 | Furnace lockout after too many ignition retries (3 total): flame failed to establish or was lost after establishment. | Manual (PDF) for Goodman EE0 (opens in a new tab) ↗ |
| Goodman | Furnaces | EE1 | Pressure switch circuit is closed at the start of the heating cycle. | Manual (PDF) for Goodman EE1 (opens in a new tab) ↗ |
| Goodman | Furnaces | EE2 | Pressure switch circuit is not closed. | Manual (PDF) for Goodman EE2 (opens in a new tab) ↗ |
| Goodman | Furnaces | EE3 | Primary limit circuit is open. | Manual (PDF) for Goodman EE3 (opens in a new tab) ↗ |
| Goodman | Furnaces | EE4 | Flame sensed with no call for heat. | Manual (PDF) for Goodman EE4 (opens in a new tab) ↗ |
| Goodman | Furnaces | EE5 | Open fuse. | Manual (PDF) for Goodman EE5 (opens in a new tab) ↗ |
| Goodman | Furnaces | EE6 | Low flame signal: flame sense microamp signal is minimal. | Manual (PDF) for Goodman EE6 (opens in a new tab) ↗ |
| Goodman | Furnaces | EEA | Polarity of 115 volt AC is reversed, or poor unit ground. | Manual (PDF) for Goodman EEA (opens in a new tab) ↗ |
| Goodman | Furnaces | EEb | Gas valve is not energized when it should be. | Manual (PDF) for Goodman EEb (opens in a new tab) ↗ |
| Goodman | Furnaces | EEC | Gas valve is energized when it should not be. | Manual (PDF) for Goodman EEC (opens in a new tab) ↗ |
| Goodman | Furnaces | EEE | Internal faults or IRQ loss in control board. | Manual (PDF) for Goodman EEE (opens in a new tab) ↗ |
| Goodman | Furnaces | EEH | Twin error. The twinning feature is not working. The chart says to check the wiring connections, then replace the integrated control board. | Manual (PDF) for Goodman EEH (opens in a new tab) ↗ |
| Goodman | Furnaces | EEJ | Inducer relay error. The furnace fails to operate, and the chart says to replace the integrated control board. | Manual (PDF) for Goodman EEJ (opens in a new tab) ↗ |
| Goodman | Furnaces | EEL | Problem with igniter circuit. | Manual (PDF) for Goodman EEL (opens in a new tab) ↗ |
| Goodman | Furnaces | EEn | Igniter open. | Manual (PDF) for Goodman EEn (opens in a new tab) ↗ |
| Lennox | Furnaces | Alternating fast flash | Improper main ground, OR line voltage below 90 volts. Control will not respond to a heat call until voltage rises above 95 volts. | Manual (PDF) for Lennox Alternating fast flash (opens in a new tab) ↗ |
| Lennox | Furnaces | Alternating slow flash | Watchguard 1 hour: burners failed to ignite or lost flame 5 times during a single heating demand. | Manual (PDF) for Lennox Alternating slow flash (opens in a new tab) ↗ |
| Lennox | Furnaces | Board failure pattern | Circuit board failure or control wired incorrectly. | Manual (PDF) for Lennox Board failure pattern (opens in a new tab) ↗ |
| Lennox | Furnaces | E200 | Hard lockout: the rollout circuit is open, or it was open. | Manual (PDF) for Lennox E200 (opens in a new tab) ↗ |
| Lennox | Furnaces | E223 | Low pressure switch failed open. | Manual (PDF) for Lennox E223 (opens in a new tab) ↗ |
| Lennox | Furnaces | E250 | Limit switch circuit open. If the limit does not close within 3 minutes, the furnace goes into a 1-hour soft lockout. | Manual (PDF) for Lennox E250 (opens in a new tab) ↗ |
| Lennox | Furnaces | E270 | Soft lockout: retries ran out and no flame current was sensed. | Manual (PDF) for Lennox E270 (opens in a new tab) ↗ |
| Lennox | Furnaces | E291 | Restricted heat airflow: airflow is below the minimum, and the furnace is in a 1-hour soft lockout. | Manual (PDF) for Lennox E291 (opens in a new tab) ↗ |
| Lennox | Furnaces | Red fast flash, green slow flash | Main power polarity reversed. Switch line and neutral. | Manual (PDF) for Lennox Red fast flash, green slow flash (opens in a new tab) ↗ |
| Lennox | Furnaces | Red off, green slow flash | Pressure prove switch open, OR blocked inlet/exhaust vent, OR pressure switch closed before the combustion air inducer started. | Manual (PDF) for Lennox Red off, green slow flash (opens in a new tab) ↗ |
| Lennox | Furnaces | Red on, green slow flash | Rollout switch open, OR 12-pin connector improperly attached. | Manual (PDF) for Lennox Red on, green slow flash (opens in a new tab) ↗ |
| Lennox | Furnaces | Red slow flash, green fast flash | Low flame signal: measures below 1.5 microamps. Replace flame sense rod. | Manual (PDF) for Lennox Red slow flash, green fast flash (opens in a new tab) ↗ |
| Lennox | Furnaces | Red slow flash, green off | Flame sensed without gas valve energized. | Manual (PDF) for Lennox Red slow flash, green off (opens in a new tab) ↗ |
| Lennox | Furnaces | Red slow flash, green on | Primary or secondary limit switch open. Limit must close within 3 minutes or the unit goes into 1-hour Watchguard. | Manual (PDF) for Lennox Red slow flash, green on (opens in a new tab) ↗ |
| Rheem | Furnaces | 10 | One-hour lockout, caused by repeated failed ignition (11), water sensed (59), dead blower (61), internal fault (93), flame lost 5 times (13) or unexpected flame (14). | Manual (PDF) for Rheem 10 (opens in a new tab) ↗ |
| Rheem | Furnaces | 11 | Failed ignition. After four failed attempts the control enters one-hour lockout (10). | Manual (PDF) for Rheem 11 (opens in a new tab) ↗ |
| Rheem | Furnaces | 12 | Low flame sense: flame sense current is weak or marginal. Furnace keeps running. | Manual (PDF) for Rheem 12 (opens in a new tab) ↗ |
| Rheem | Furnaces | 13 | Flame lost after established. | Manual (PDF) for Rheem 13 (opens in a new tab) ↗ |
| Rheem | Furnaces | 14 | Flame present with gas valve off. Extremely critical; furnace will not operate. | Manual (PDF) for Rheem 14 (opens in a new tab) ↗ |
| Rheem | Furnaces | 30 | Open fuse, usually from a 24 VAC short to common or ground. | Manual (PDF) for Rheem 30 (opens in a new tab) ↗ |
| Rheem | Furnaces | 33 | Over-temperature (rollout) switch open: flames rolled out of the heat exchanger into the burner compartment. | Manual (PDF) for Rheem 33 (opens in a new tab) ↗ |
| Rheem | Furnaces | 44 | Low pressure switch closed with inducer off. | Manual (PDF) for Rheem 44 (opens in a new tab) ↗ |
| Rheem | Furnaces | 45 | Low pressure switch open with inducer on high speed. | Manual (PDF) for Rheem 45 (opens in a new tab) ↗ |
| Rheem | Furnaces | 46 | Low pressure switch open with inducer on low speed. | Manual (PDF) for Rheem 46 (opens in a new tab) ↗ |
| Rheem | Furnaces | 55 | High pressure switch closed while the inducer is off. This is a critical fault for gas heat. Cooling can still run. The code is present during a heat call before pre-purge. | Manual (PDF) for Rheem 55 (opens in a new tab) ↗ |
| Rheem | Furnaces | 57 | High pressure switch open with inducer on high speed; furnace may drop to low fire. | Manual (PDF) for Rheem 57 (opens in a new tab) ↗ |
| Rheem | Furnaces | 58 | Water circuit open. The control cannot see continuity between pins 1 and 2 of connector P4, so it does not see both water sensors. Gas heat will not run. Other modes, such as cooling, should. | Manual (PDF) for Rheem 58 (opens in a new tab) ↗ |
| Rheem | Furnaces | 59 | Water sensed in the collector box; gas heat will not run. | Manual (PDF) for Rheem 59 (opens in a new tab) ↗ |
| Rheem | Furnaces | 60 | Blower fault, blower can still run: blower at max speed/torque or temperature limit because static pressure is too high. | Manual (PDF) for Rheem 60 (opens in a new tab) ↗ |
| Rheem | Furnaces | 61 | Blower fault, motor cannot run. Furnace will not operate in any mode. | Manual (PDF) for Rheem 61 (opens in a new tab) ↗ |
| Rheem | Furnaces | d1 | No model data. This is a critical fault. The furnace will not operate in any mode, including a thermostat call. | Manual (PDF) for Rheem d1 (opens in a new tab) ↗ |
| Rheem | Furnaces | d4 | No valid model data on the memory card. This is a non-critical fault. The furnace should still operate, and d4 is displayed in standby. | Manual (PDF) for Rheem d4 (opens in a new tab) ↗ |
| Rheem | Furnaces | d6 | Horsepower conflict on the memory card. The motor's horsepower does not match the card, but the model data in the furnace control does match the motor. This is a non-critical fault, shown in standby. | Manual (PDF) for Rheem d6 (opens in a new tab) ↗ |
| Trane | Furnaces | E01 | Loss of the IRQ or other internal failures (internal furnace control error). | Manual (PDF) for Trane E01 (opens in a new tab) ↗ |
| Trane | Furnaces | E2.1 | Retry exceeded: flame never sensed after 3 ignition tries in one call for heat. One-hour lockout. | Manual (PDF) for Trane E2.1 (opens in a new tab) ↗ |
| Trane | Furnaces | E2.2 | Recycles exceeded: flame sensed then lost 10 times (or PS1 open 10 times) in one call for heat. One-hour lockout. | Manual (PDF) for Trane E2.2 (opens in a new tab) ↗ |
| Trane | Furnaces | E2.3 | 1st stage gas valve not energized: it failed 10 times in the same call for heat. The service facts say 24 VAC was not sensed on MVL those 10 times. | Manual (PDF) for Trane E2.3 (opens in a new tab) ↗ |
| Trane | Furnaces | E2.4 | High-limit output relay is not closed when it should be. The service facts say 24 VAC was not sensed on HLO ten times. | Manual (PDF) for Trane E2.4 (opens in a new tab) ↗ |
| Trane | Furnaces | E3.1 | Shorted pressure switch, 1st stage: PS1 is closed when it should be open. | Manual (PDF) for Trane E3.1 (opens in a new tab) ↗ |
| Trane | Furnaces | E3.2 | Open pressure switch, 1st stage: PS1 is open when it should be closed. | Manual (PDF) for Trane E3.2 (opens in a new tab) ↗ |
| Trane | Furnaces | E3.3 | 2nd stage pressure switch PS2 is closed when it should be open. The service facts say the pressure switch is not the problem in most cases. | Manual (PDF) for Trane E3.3 (opens in a new tab) ↗ |
| Trane | Furnaces | E3.4 | Open pressure switch, 2nd stage: PS2 is open when it should be closed. | Manual (PDF) for Trane E3.4 (opens in a new tab) ↗ |
| Trane | Furnaces | E04 | Open limit: main thermal limit, flame rollout switch, or reverse airflow switch. | Manual (PDF) for Trane E04 (opens in a new tab) ↗ |
| Trane | Furnaces | E05 | Flame detected when it should not be present. | Manual (PDF) for Trane E05 (opens in a new tab) ↗ |
| Trane | Furnaces | E06 | Voltage reversed polarity or bad grounding. | Manual (PDF) for Trane E06 (opens in a new tab) ↗ |
| Trane | Furnaces | E6.3 | Igniter relay fault or igniter open/shorted. | Manual (PDF) for Trane E6.3 (opens in a new tab) ↗ |
| Trane | Furnaces | E7.1 | 1st stage gas valve (MVL) is energized when it should be off. | Manual (PDF) for Trane E7.1 (opens in a new tab) ↗ |
| Trane | Furnaces | E7.2 | Redundant high-limit relay stuck closed: the service facts call this an internal control-board error. The relay is closed when it should not be. | Manual (PDF) for Trane E7.2 (opens in a new tab) ↗ |
| Trane | Furnaces | E08 | Low flame current, but still strong enough to allow operation. | Manual (PDF) for Trane E08 (opens in a new tab) ↗ |
| Trane | Furnaces | E09 | Open inducer limit switch or condensate pressure switch. | Manual (PDF) for Trane E09 (opens in a new tab) ↗ |
| Trane | Furnaces | E10 | Inducer and blower are not communicating: the service facts call this an internal control-board error between those two microprocessors. | Manual (PDF) for Trane E10 (opens in a new tab) ↗ |
| Trane | Furnaces | E11 | Gas-valve relay fault, or 24 VAC at the 2nd stage valve: the control reports failed internal gas-valve relays, or voltage sensed at the 2nd stage gas valve. | Manual (PDF) for Trane E11 (opens in a new tab) ↗ |
| Trane | Furnaces | E12 | Open fuse: the onboard 5 amp fuse is open or missing. | Manual (PDF) for Trane E12 (opens in a new tab) ↗ |
| Trane | Furnaces | E13 | Blower does not match the personality module: the motor horsepower or OEM identification differs from the value programmed on the module. | Manual (PDF) for Trane E13 (opens in a new tab) ↗ |
| Trane | Furnaces | E14 | Personality module missing: the control cannot read the information stored on the board. | Manual (PDF) for Trane E14 (opens in a new tab) ↗ |
| Trane | Furnaces | E15 | Personality module and control data are both corrupted. | Manual (PDF) for Trane E15 (opens in a new tab) ↗ |
| Trane | Furnaces | E17 | No return signal from the blower: the integrated furnace control does not see the motor answer. | Manual (PDF) for Trane E17 (opens in a new tab) ↗ |
| Trane | Furnaces | E18 | Control does not see its own send message: the integrated furnace control is not seeing the blower-communication send. | Manual (PDF) for Trane E18 (opens in a new tab) ↗ |
| York | Furnaces | 1 red flash | Flame was sensed when there was not a call for heat. The control turns on both the inducer motor and the supply air blower. | Manual (PDF) for York 1 red flash (opens in a new tab) ↗ |
| York | Furnaces | 2 red flashes | The pressure switch is closed when it should be open. The control checks that the contacts are open at the start of each heat cycle and will not continue ignition if they are already closed. | Manual (PDF) for York 2 red flashes (opens in a new tab) ↗ |
| York | Furnaces | 3 red flashes | The pressure switch contacts are open when they should be closed. | Manual (PDF) for York 3 red flashes (opens in a new tab) ↗ |
| York | Furnaces | 4 red flashes | The main limit switch has opened its normally closed contacts. The control runs the supply air blower and the inducer while the limit stays open. | Manual (PDF) for York 4 red flashes (opens in a new tab) ↗ |
| York | Furnaces | 5 red flashes | The normally closed rollout switch has opened. The rollout control is manually reset. The control enters a hard lockout, and power has to be cycled off and on only after the problem is corrected. | Manual (PDF) for York 5 red flashes (opens in a new tab) ↗ |
| York | Furnaces | 6 red flashes | While the furnace was operating, the pressure switch opened four times during the call for heat. The furnace locks out for one hour and then restarts. | Manual (PDF) for York 6 red flashes (opens in a new tab) ↗ |
| York | Furnaces | 7 red flashes | The flame could not be established during three trials for ignition. The furnace locks out for one hour and then restarts. | Manual (PDF) for York 7 red flashes (opens in a new tab) ↗ |
| York | Furnaces | 8 red flashes | The flame was lost five times (four recycles) during the heating cycle. The furnace locks out for one hour and then restarts. | Manual (PDF) for York 8 red flashes (opens in a new tab) ↗ |
| York | Furnaces | 9 red flashes | Reversed line-voltage polarity, a grounding problem, or reversed low-voltage transformer wires. Heating and cooling are both affected. The furnace will not start the ignition sequence until this is corrected. | Manual (PDF) for York 9 red flashes (opens in a new tab) ↗ |
| York | Furnaces | 10 red flashes | The gas valve is energized with no call for heat. The main blower and the inducer blower run, and no ignition sequence starts, for as long as this condition exists. | Manual (PDF) for York 10 red flashes (opens in a new tab) ↗ |
| York | Furnaces | 11 red flashes | The main limit switch has opened and stayed open for more than five minutes. The manual says this is usually a failed blower motor or blower wheel. The control is in a hard lockout. Power has to be cycled off and on only after the problem is corrected. | Manual (PDF) for York 11 red flashes (opens in a new tab) ↗ |
| York | Furnaces | continuous amber | Flame sense current is below 1.5 microamps. The manual's ignition-control levels put a normal flame sense current at about 3.7 microamps DC, the low-flame warning at 1.5 microamps, and the control lockout point at 0.1 microamps DC. | Manual (PDF) for York continuous amber (opens in a new tab) ↗ |
| Navien | Tankless water heaters | E003 | Ignition failure: the burner did not light. | Manual (PDF) for Navien E003 (opens in a new tab) ↗ |
| Navien | Tankless water heaters | E004 | False flame detection: the control sensed a flame when it should not have. | Manual (PDF) for Navien E004 (opens in a new tab) ↗ |
| Navien | Tankless water heaters | E012 | Flame loss: the burner lit and then lost its flame. | Manual (PDF) for Navien E012 (opens in a new tab) ↗ |
| Navien | Tankless water heaters | E016 | Overheating of the heat exchanger. | Manual (PDF) for Navien E016 (opens in a new tab) ↗ |
| Navien | Tankless water heaters | E030 | Exhaust overheating: the heater shuts down when flue temperature exceeds 149°F (65°C). | Manual (PDF) for Navien E030 (opens in a new tab) ↗ |
| Navien | Tankless water heaters | E110 | Abnormal air pressure. | Manual (PDF) for Navien E110 (opens in a new tab) ↗ |
| Rinnai | Tankless water heaters | 10 | Air supply or exhaust blockage, or the condensate trap is full. | Manual (PDF) for Rinnai 10 (opens in a new tab) ↗ |
| Rinnai | Tankless water heaters | 11 | No ignition: the heater is not turning on. | Manual (PDF) for Rinnai 11 (opens in a new tab) ↗ |
| Rinnai | Tankless water heaters | 12 | No flame. | Manual (PDF) for Rinnai 12 (opens in a new tab) ↗ |
| Rinnai | Tankless water heaters | 14 | Heat exchanger overheat. | Manual (PDF) for Rinnai 14 (opens in a new tab) ↗ |
| Rinnai | Tankless water heaters | SS | Service soon: it is time to flush the heat exchanger. | Manual (PDF) for Rinnai SS (opens in a new tab) ↗ |
| LG | Washing machines | AE | Leakage error: the washer has detected a water leak inside the appliance and its anti-flood safety switch has been activated. | Support page for LG AE (opens in a new tab) ↗ |
| LG | Washing machines | CE | Motor over-current error: there is an over-current in the motor's electrical circuit. | Support page for LG CE (opens in a new tab) ↗ |
| LG | Washing machines | CL | Child Lock is on: LG says CL is not an error code. Child Lock is active, so the control panel is disabled and settings cannot be adjusted. | Support page for LG CL (opens in a new tab) ↗ |
| LG | Washing machines | dE | Door error: the door is not closed properly, so the washer could not lock it. | Support page for LG dE (opens in a new tab) ↗ |
| LG | Washing machines | dE2 | Door closed but not locked: the washer detects the door as closed, but it did not lock. | Support page for LG dE2 (opens in a new tab) ↗ |
| LG | Washing machines | FE | Overfill error: too much water has entered the drum. The drain pump runs to prevent leaks. | Support page for LG FE (opens in a new tab) ↗ |
| LG | Washing machines | FF | Freeze failure: the temperature inside the washer has dropped below 1°C (about 34°F), so water in the drain or inlet hoses may be frozen. The washer will not start until it warms above 4°C (about 39°F). | Support page for LG FF (opens in a new tab) ↗ |
| LG | Washing machines | IE | Water inlet error: the tub did not fill to an adequate level within the set time. | Support page for LG IE (opens in a new tab) ↗ |
| LG | Washing machines | LE | Motor error: the tub failed to spin, so the motor cannot operate properly. | Support page for LG LE (opens in a new tab) ↗ |
| LG | Washing machines | OE | Drain error: the washer is unable to drain the water used during the wash cycle. | Support page for LG OE (opens in a new tab) ↗ |
| LG | Washing machines | PE | Water level sensor error: LG says the PE code indicates that the washer's water level sensor is malfunctioning. | Support page for LG PE (opens in a new tab) ↗ |
| LG | Washing machines | PF | Power failure: LG says PF means the power supply to the washer was interrupted during a cycle, for example by a power outage. | Support page for LG PF (opens in a new tab) ↗ |
| LG | Washing machines | Sud | Excess suds detected: the washer adds a suds-reducing cycle (about 2 hours extra) and, if suds appear during spinning, stops to help prevent leaking. | Support page for LG Sud (opens in a new tab) ↗ |
| LG | Washing machines | tCL | Tub Clean reminder: it is time to run the Tub Clean cycle. This is a maintenance reminder, not a fault. | Support page for LG tCL (opens in a new tab) ↗ |
| LG | Washing machines | tE | Heating error: usually caused by a faulty thermistor (the washer's water temperature sensor). | Support page for LG tE (opens in a new tab) ↗ |
| LG | Washing machines | UE | Unbalanced load error: laundry is piled on one side of the drum and the washer could not even it out. | Support page for LG UE (opens in a new tab) ↗ |
| LG | Washing machines | vS | Vibration sensor error: LG says vS (shown as u5 or uS on some displays) indicates a potential issue with the vibration sensor, due to a contact problem or a sensor malfunction. | Support page for LG vS (opens in a new tab) ↗ |
| Samsung | Washing machines | 3C | Motor error: Samsung lists 3C, 3E, E3 and 1 3C as a motor error. On some models 3E is a voltage error instead, so check your user manual. | Support page for Samsung 3C (opens in a new tab) ↗ |
| Samsung | Washing machines | 4C | Not filling error: water is not entering the washer correctly. | Support page for Samsung 4C (opens in a new tab) ↗ |
| Samsung | Washing machines | 4C2 | Hot/cold error: the water from the cold supply is extremely hot because the supply hoses are swapped. | Support page for Samsung 4C2 (opens in a new tab) ↗ |
| Samsung | Washing machines | 5C | No drain error: water is not draining from the washer at the correct speed, or at all. | Support page for Samsung 5C (opens in a new tab) ↗ |
| Samsung | Washing machines | 9C1 | Power supply (voltage) error: there is an irregularity in the electrical current reaching the washer. | Support page for Samsung 9C1 (opens in a new tab) ↗ |
| Samsung | Washing machines | bE2 | Jammed button error: a button on the control panel is detected as stuck or continuously pressed. | Support page for Samsung bE2 (opens in a new tab) ↗ |
| Samsung | Washing machines | dE | Door error: the washer does not detect the door as closed and locked. | Support page for Samsung dE (opens in a new tab) ↗ |
| Samsung | Washing machines | LC | Water level or leakage error: moisture is detected somewhere it should not be, or there is an issue with the sensor itself. | Support page for Samsung LC (opens in a new tab) ↗ |
| Samsung | Washing machines | SUd | Excessive suds error: the washer detected over-sudsing and stops for a short period to let the suds dissipate, then continues the cycle automatically. | Support page for Samsung SUd (opens in a new tab) ↗ |
| Samsung | Washing machines | UE | Unbalanced load error: the load is unbalanced inside the tub. Ur means the washer will add water, try to rebalance the load and retry the spin; Ur does not mean there is a problem. | Support page for Samsung UE (opens in a new tab) ↗ |
| Whirlpool | Washing machines | F0 E5 | Off balance: an unbalanced load can lengthen the cycle and leave clothes dripping. | Support page for Whirlpool F0 E5 (opens in a new tab) ↗ |
| Whirlpool | Washing machines | F5 E2 | Door error: the door is not locking properly. | Support page for Whirlpool F5 E2 (opens in a new tab) ↗ |
| Whirlpool | Washing machines | F7 E1 | Motor speed sensing error: the motor cannot reach the correct speed for the selected cycle. | Support page for Whirlpool F7 E1 (opens in a new tab) ↗ |
| Whirlpool | Washing machines | F8 E1 | Low water flow: the washer is sensing a low flow of water. | Support page for Whirlpool F8 E1 (opens in a new tab) ↗ |
| Whirlpool | Washing machines | F8 E2 | Dispenser system problem: the detergent drawer or detergent cartridge may be clogged. | Support page for Whirlpool F8 E2 (opens in a new tab) ↗ |
| Whirlpool | Washing machines | F9 E1 | Slow drain: drain times are longer than expected, typically over eight minutes. | Support page for Whirlpool F9 E1 (opens in a new tab) ↗ |
| Whirlpool | Washing machines | LOC | Control Lock is on. It is a lockout of the controls, not a mechanical fault. | Support page for Whirlpool LOC (opens in a new tab) ↗ |
| Whirlpool | Washing machines | Sud | Too many suds: the washer cannot spin out water with excess suds, so it extends the rinse and pauses tumbling to let the bubbles break. | Support page for Whirlpool Sud (opens in a new tab) ↗ |