Noritz Error Code 14: Thermal Fuse Failure
Warning: Your Noritz water heater is not producing hot water due to a thermal fuse failure. It's safe to use, but needs professional repair.
How to Fix Noritz Code 14
- Step 1: Check if your water heater is still under warranty. If so, contact Noritz for support.
- Step 2: Turn off the power to your water heater at the circuit breaker to prevent any further issues.
- Step 3: Call a licensed HVAC technician to diagnose and repair the issue. Do not attempt to replace the thermal fuse yourself.
How to Reset Noritz Code 14
- 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 14 mean?
The Noritz 14 error code indicates a failure of the thermal fuse in your water heater. The thermal fuse is a safety device that trips when the temperature exceeds a certain level, preventing overheating. When it fails, it stops the heating process, and your water heater won't produce hot water. This issue is common in Noritz water heaters due to their high-quality construction and safety features.
Affected Models
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Thermal Fuse | Noritz 12202000 | — |
Related Codes on Same Models
| Code | Description | Severity |
|---|---|---|
| 10 | Flame Failure | Warning |
| 11 | Ignition Failure | Warning |
| 29 | Condensate Drain Issue | Warning |
| 31 | Inlet Thermistor Failure | Warning |
| 32 | Outlet Thermistor Failure | Warning |
| 33 | Heat Exchanger Thermistor Failure | Warning |
| 43 | Water Level/Neutralizer Issue | Warning |
| 45 | Water Leak Detected | Warning |
| 51 | Fan Motor Failure | Warning |
| 61 | Fan Motor Failure | Warning |