E91
Amica
User Interface Communication Error
Washer displays E91; control panel not responding correctly on Amica washing machine.
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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
Loose or damaged ribbon cable between UI and main PCB, Faulty user interface board, Faulty main control board, Moisture in control panel
How to Fix / Troubleshooting
Safety first: Unplug the washer before removing the control panel.
- 1. Remove control fascia: Carefully unclip the front control panel to access the user interface board and ribbon cable.
- 2. Check connections: Ensure the ribbon cable is fully seated at both the UI and main PCB ends. Look for corrosion or bent pins.
- 3. Inspect for moisture: If the panel shows signs of water ingress (from steam or spills), dry thoroughly and consider replacing the UI board if corrosion is present.
- 4. Swap boards if necessary: Replace the user interface board first. If E91 persists, the main PCB may also need replacement.
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Repair Difficulty
Hard
4/5
Required Part
User Interface Board
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