Status code58Rheem
What does Rheem 58 mean?
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.
Call a pro: jump to when to call a pro Equipment type: furnace
How it shows: Dual 7-segment display on a Rheem R96V / (-)96V furnace (installation instructions 92-24161-124-03): 58
Likely causes
- Damaged wiring between the control and a water sensor
- Connector P4 or a sensor connector not seated
- A water sensor has been removed
Safe checks for 58
- Write down 58. It is not 59. Code 59 means water was sensed in the collector box. Code 58 means the sensor circuit is open
- Technicianrepair or replace the wiring, reseat P4 and the sensor connectors, and replace a missing water sensor
Safety firstIf you smell gas, do not touch any electrical switch or use a phone in the building; leave immediately and call your gas supplier from outside. Turn off electrical power at the furnace switch or breaker before opening any panel, and never bypass or jumper a limit, rollout or pressure switch. Gas valve, burner, venting, wiring and control-board work should be done by a licensed HVAC technician.
Capacitors can hold a charge after the power is off. Safety terms.
When to call a pro
Call a licensed HVAC technician. 58 is an open water-sensor circuit, not a clogged drain.
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