Rheem PROG40-42N RH62 Water Heater Error Codes
PROG40-42N RH62 Error Code Reference
Section titled “PROG40-42N RH62 Error Code Reference”Natural Gas, 40 gal
| Error Code | Fault Description |
|---|---|
| C01 | No pilot / ignition failure (gas) |
| C11 | Thermistor (temperature sensor) fault |
| C13 | High-limit (ECO) safety switch tripped |
| C7 | Flue gas sensor fault (gas models) |