E18
Maytag
User Interface to Main Board Communication Fault
Ice maker shows communication error between user interface and main control
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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: Unplug the ice maker before removing the control panel.
- Remove UI panel: Take out screws securing the front control panel and gently pull it forward.
- Inspect ribbon cable: Check the flat ribbon 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 connector pins. Clean lightly with contact cleaner and a soft brush.
- Replace UI board: If connections are good but the UI remains unresponsive or error persists, replace the user interface board.
- Main board: If a new UI 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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