Compressor overcurrent lockout for 2 hours, elevated from fault 49 after 5 occurrences.
Homeowner part this code names: AC coil cleaner.
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Carrier 95 is the compressor overcurrent lockout for 2 hours, elevated from fault 49 after 5 occurrences. The 6-minute event is code 49. Causes include high superheat, the compressor outside its allowed envelope, supply voltage, loose connections, phase imbalance, low outdoor airflow, overcharge, inverter damage, and compressor internal damage. The outdoor-coil check is the airflow line. Voltage is compared with the rating plate, not with code 46's 180 V figure.
Likely causes
- High superheat, or the compressor operating outside its allowed envelope
- Incoming supply voltage outside the rating plate, or loose power connections
- Phase imbalance or miswired compressor leads at U, V, and W
- Outdoor airflow too low or off
- Refrigerant overcharge
- Inverter damage or compressor internal damage
Safe checks for 95
- With power off, check the outdoor coil for ice or debris. The table pairs that look with troubleshooting the outdoor fan
- Techniciancheck voltage against the rating plate, winding resistance and lead wiring, superheat, the suction transducer, charge, and replace the inverter or compressor only if those checks say so
Capacitors can hold a charge after the power is off. Safety terms.
When to call a pro
Call a licensed HVAC technician. Code 49 was still resetting every 6 minutes. 95 is the 2-hour lockout.
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Parts & tools for this fix
Taken from this code's causes or steps. A search link opens Amazon results and does not confirm a fit. Check the model number in the manual.
AC and heat pump coil cleaning supplies: guide
In this code: With power off, check the outdoor coil for ice or debris. The table pairs that look with troubleshooting the outdoor fan
Multimeter for appliance and HVAC diagnosis: guide
In this code: Incoming supply voltage outside the rating plate, or loose power connections
This one is for a technician to test or replace, so we only explain it and do not link to buy it.
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