E09
Atlantic
Fan Speed / Fan Feedback Fault
Boiler displays E09, may attempt to start but shuts down quickly; sometimes accompanied by unusual fan noise.
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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 motor, Blocked or stiff fan impeller, Faulty fan speed sensor (Hall sensor), Wiring fault between fan and PCB
How to Fix / Troubleshooting
Safety: Isolate power before removing the boiler cover. Do not run the boiler with the cover removed.
- Listen for fan: On reset, you should hear the fan start before ignition. If it does not start or makes grinding noises, it may be seized or obstructed.
- Check flue for obstruction: Ensure the flue terminal is clear; a blockage can overload the fan.
- Visual inspection: With the cover off (if permitted), look for debris around the fan housing and signs of overheating or burning.
- Professional repair: Fan replacement and verification of correct speed feedback must be done by a qualified technician, as it affects combustion safety.
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Repair Difficulty
Hard
4/5
Required Part
Combustion Fan Assembly
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