Ikea Communication Error Between UI and Main Board

Freezer shows E6 and may not communicate between display and main board.

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.

Possible Causes

Damaged communication harness, Loose connectors, Faulty UI board, Faulty main control board

Safety: Unplug the freezer before accessing control panels.

Steps:

1. Access both boards: Remove the front control panel and rear/top cover to access the UI and main board.
2. Inspect harness: Check the communication cable for cuts, pinches, or signs of rodent damage.
3. Reseat connectors: Disconnect and reconnect the harness at both ends.
4. Substitute boards: If possible, replace the UI board first. If E6 persists, replace the main control board.

Medium 3/5

Communication Harness between UI and Main Board

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