E18
Maytag
User Interface to Main Control Board Communication Fault
Ice maker displays a communication error between the user interface and the main control board.
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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 UI harness, damaged ribbon cable, failed user interface board, failed main control board.
How to Fix / Troubleshooting
Safety first: Always unplug the ice maker before removing the control panel.
- Remove the UI panel: Remove screws securing the front control panel and gently pull it forward.
- Inspect the ribbon cable: Check the flat ribbon cable or harness between the UI and main board for kinks, cuts, or burn marks.
- Reseat connectors: Disconnect and reconnect the cable at both ends to ensure a solid connection.
- Check for corrosion: Look for green or white corrosion on the connector pins. Clean lightly with contact cleaner and a soft brush.
- Replace UI board: If connections are good but the UI remains unresponsive or the error persists, replace the user interface board.
- Main board: If a new UI board does not resolve the issue, the main control board may be defective and require replacement.
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Repair Difficulty
Medium
3/5
Required Part
User Interface Board
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