Noritz Error Code 10: Flame Failure

How to Fix Noritz Code 10

1. Check if the gas supply is turned on and the valve is open.
2. Inspect the area around the water heater for any obstructions that might be preventing proper airflow.
3. If the issue persists, contact a professional HVAC technician.

How to Reset Noritz Code 10

1. Turn off the unit using the power button on the front panel.
2. Turn off the gas supply valve.
3. Turn off the circuit breaker supplying power to the unit. Wait 30 seconds.
4. Restore power at the breaker, then open the gas valve.
5. Turn the unit back on. If the error returns, the underlying issue needs repair.

Resetting clears the code from the display but does not fix the underlying fault. If the code returns after reset, proceed to the diagnostic steps above.

What Does Noritz Error Code 10 Mean?

The Noritz 10 error code indicates that your water heater's flame has gone out. This could be due to a few reasons, but it's crucial to address it promptly to prevent further issues. The system is designed to shut down as a safety precaution when it detects this problem.

Common Causes

• Gas supply interruption
• Faulty igniter or flame rod
• Clogged burner orifices
• Malfunctioning gas control valve

Diagnostic Steps

Replacement Parts

Related Codes on Same Models

Other codes that affect the same Noritz model families as 10.