61
Rinnai
Combustion Fan Speed Feedback Fault
Boiler displays error 61; fan may not respond to speed commands or may run at a fixed speed.
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Safety Warning
This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.
If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.
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Possible Causes
Failed fan speed sensor (Hall sensor), Damaged fan motor, Loose feedback wiring to control board, Control PCB fan circuit failure
How to Fix / Troubleshooting
Safety first: Isolate power and gas before accessing internal components.
- Inspect fan wiring: Locate the multi-pin connector on the fan motor and ensure it is fully seated. Check for damaged or pulled wires.
- Check for moisture or corrosion: Look for signs of water ingress around the fan and connector. Dry thoroughly if present.
- Reset and test: Restore power and reset the boiler. Listen for fan speed changes during startup. If error 61 returns, the fan assembly likely needs replacement.
- Professional diagnosis: A technician can verify fan speed feedback signals and determine if the control PCB is also affected.
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Repair Difficulty
Hard
4/5
Required Part
Combustion Fan Motor
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