Rinnai Error Code 29: Condensate Neutralizer
Warning: Your Rinnai water heater is displaying error code 29, indicating a condensate neutralizer issue. This isn't an immediate safety risk, but it's important to address to prevent further damage.
How to Fix Rinnai Code 29
- Check if the condensate neutralizer is clogged. If it is, try cleaning it using a suitable cleaner and a small brush.
- If the neutralizer is clean and the error persists, it's likely a faulty sensor or incorrect wiring. In this case, it's best to call a professional.
- If you're unsure about any of these steps or if the error code returns, always call a professional HVAC technician.
How to Reset Rinnai Code 29
- 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 29 mean?
Error code 29 on your Rinnai water heater means the condensate neutralizer, which helps maintain a safe pH level in the condensate, isn't functioning properly. This could be due to a clogged neutralizer or a faulty sensor. Although this isn't an immediate safety hazard, it's crucial to address this issue to prevent potential damage to your water heater and ensure its longevity.
Affected Models
Replacement Parts
| Part | OEM Number | Est. Cost |
|---|---|---|
| Condensate Neutralizer | RIN-0100900000 | — |
| pH Sensor | RIN-0100900001 | — |
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 |
| 31 | Inlet Thermistor Failure | Warning |
| 32 | Outlet Thermistor Failure | Warning |