Richmond Error Code 12: Flame Failure
How to Fix Richmond Code 12
- Step 1: Immediately shut off the gas supply to the water heater. There should be a gas shut-off valve on the gas supply pipe leading to the unit.
- Step 2: Open windows and doors to ventilate the area in case of gas accumulation.
- Step 3: Do not attempt to relight the water heater yourself. Contact a qualified HVAC technician or gas appliance specialist to diagnose and repair the problem.
How to Reset Richmond Code 12
- Turn off the unit using the power button on the front panel.
- Turn off the gas supply valve.
- Turn off the circuit breaker supplying power to the unit. Wait 30 seconds.
- Restore power at the breaker, then open the gas valve.
- Turn the unit back on. If the error returns, the underlying issue needs repair.
What does 12 mean?
Error code 12, 'Flame Failure,' on your Richmond water heater means the unit tried to light the burner, but the flame wasn't properly detected or went out during operation. This is a critical safety issue because unburned gas can accumulate, creating a risk of explosion or carbon monoxide poisoning. The water heater's control system is designed to shut down the gas supply when a flame isn't sensed to prevent these hazards.
Several components work together to ensure proper flame ignition and detection. The igniter starts the flame, and the flame sensor (usually a flame rod) confirms the flame's presence to the control board. If any of these components fail or if there's a problem with the gas supply or venting, the water heater will shut down and display the 'Flame Failure' error.
Affected Models
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Flame Sensor | — | — |
| Gas Valve | — | — |
| Igniter | — | — |