E16
Ravenheat
Fan Speed / Fan Feedback Fault
Furnace shows E16, sometimes after long periods of inactivity.
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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
Worn or seized fan bearings, Faulty fan speed sensor or tachometer, Obstruction in fan housing, PCB fan drive fault
How to Fix / Troubleshooting
Safety: Isolate power. The fan is part of the sealed combustion circuit; only qualified engineers should remove it.
User checks:
- Listen for unusual noises (grinding, squealing) from the furnace when it attempts to start.
Technician checks:
- Inspect the fan impeller for debris or damage.
- Check fan spins freely by hand and has no excessive play.
- Measure fan supply voltage and feedback signal to the PCB.
- Replace the fan assembly if mechanical or electrical faults are found.
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Repair Difficulty
Hard
4/5
Required Part
Combustion Fan Assembly
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