Noritz Error Code 32: Outlet Thermistor Failure

How to Fix Noritz Code 32

1. Check if the water heater is getting power. The display should light up when you turn on the power switch.
2. Try resetting the water heater. Turn off the power at the breaker, wait 30 seconds, then turn it back on.
3. If the error persists, call a licensed HVAC technician. Do not attempt to open the water heater or touch any internal components.

How to Reset Noritz Code 32

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 32 Mean?

Error 32 on your Noritz water heater indicates a failure in the outlet thermistor, a crucial temperature sensor. This sensor ensures your water heater operates safely and efficiently. When it fails, your heater can't accurately measure the water temperature, leading to a system lockout to prevent overheating or underheating.

Common Causes

• Faulty outlet thermistor
• Wiring issue between the thermistor and the control board
• Control board malfunction

Diagnostic Steps

Replacement Parts

Related Codes on Same Models

Other codes that affect the same Noritz model families as 32.