E11
Atlantic
Fan Motor Fault
Atlantic heat-pump water heater shows E11 and stops; fan may not run.
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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
Seized fan motor, obstructed fan wheel, failed fan capacitor (if external), broken fan wiring, defective fan output on control board
How to Fix / Troubleshooting
Safety: Turn off power and wait for all moving parts to stop before working near the fan.
- Remove the top cover to access the axial fan assembly.
- Check for physical obstructions (plastic, insulation, dust buildup) preventing the fan from turning. Remove any debris.
- Spin the fan blade by hand; it should rotate freely. If stiff or seized, replace the Atlantic fan motor assembly.
- Inspect the fan wiring harness and connector; repair any loose or burnt connections.
- If your model uses an external run capacitor, test it with a capacitance meter and replace if out of spec.
- If the fan and wiring are good but the board does not supply voltage to the fan, replace the control board.
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Repair Difficulty
Hard
4/5
Required Part
Fan Motor Assembly
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