Rheem RTGH-84DVLN Tankless Water Heater Error Codes
RTGH-84DVLN Error Code Reference
Section titled “RTGH-84DVLN Error Code Reference”Natural gas, 8.4 GPM
| Error Code | Fault Description |
|---|---|
| C2 | No ignition — flame not detected after trial for ignition |
| C6 | Water flow sensor fault or insufficient flow rate |
| C7 | Flue gas sensor fault (gas models) |
| C11 | Thermistor (temperature sensor) fault |
| C12 | Combustion fan motor fault |