Washer displays E22; communication error between main control board and user interface.

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

Loose or damaged communication cable, Faulty user interface board, Faulty main control board, Electrical noise or surge damage

Safety first: Unplug the washer before removing the control panel or top cover.

Step-by-step checks:

Check communication cable: Locate the ribbon cable or harness between the UI board and main PCB. Reseat both ends and inspect for damage.
Inspect boards for damage: Look for burn marks or corrosion on both the UI and main PCB. If one board is clearly damaged, replace it.
Test after replacement: Replace the UI board first if no obvious damage is seen, then test. If E22 persists, replace the main PCB.

Hard 4/5

User Interface Control Board

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