Rinnai Error Code 32: Outlet Thermistor Failure
Warning: Your Rinnai water heater is displaying a 32 error code, indicating an outlet thermistor failure. This issue requires professional repair to prevent potential water damage.
How to Fix Rinnai Code 32
- Check if the water heater is set to the correct temperature (around 120u00b0F or 49u00b0C) and that the thermostat is functioning properly.
- Inspect the power supply to ensure it's receiving electricity and that the circuit breaker hasn't tripped.
- Contact a licensed HVAC technician to diagnose and repair the issue, as opening the water heater or tampering with its electrical components can be dangerous.
How to Reset Rinnai Code 32
- 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 32 mean?
The Rinnai 32 error code signifies that the outlet thermistor, a temperature-sensing component, has failed. This part is responsible for monitoring the water temperature at the outlet. When it malfunctions, your water heater may not heat water correctly or at all, leading to cold showers or other inconveniences. In some cases, the heater may overheat, potentially causing water damage or other issues.
Affected Models
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Outlet Thermistor | RIN-1000100000 | — |
Related Codes on Same Models
| Code | Description | Severity |
|---|---|---|
| 02 | Stagnant Water Detection | Warning |
| 10 | Air Supply/Exhaust Blockage | Warning |
| 11 | No Ignition | Warning |
| 12 | Flame Failure | Warning |
| 14 | Thermal Fuse | Warning |
| 16 | Over-Temperature | Warning |
| 19 | Electrical Grounding | Warning |
| 25 | Condensate Overflow | Warning |
| 29 | Condensate Neutralizer | Warning |
| 31 | Inlet Thermistor Failure | Warning |