Unit displays Code 79 and shuts down
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.
Possible Causes
How to Fix / Troubleshooting
Safety first: Turn OFF power and gas. Do not insert fingers or tools into the fan housing while the unit is powered.
Steps to check:
- Inspect fan: Remove the front cover and visually inspect the combustion fan for debris or damage.
- Check wiring: Ensure the fan motor connector and any feedback sensor connectors are secure.
- Reset and test: Restore power and gas and reset the unit.
When to call a professional: A technician should test fan operation and replace the fan motor assembly if necessary.
Repair Difficulty
Required Part
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