Dishwasher displays E20; unit may not start and may beep when attempting to select a cycle.

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 ribbon cable between UI and control, Damaged touch panel, Control board communication fault, Moisture intrusion in UI

Safety first: Turn off power before removing the door panel.

Inspect ribbon cable: Remove the inner door panel and check the flat ribbon cable from the user interface to the control board. Reseat both ends.
Check for corrosion: Look for signs of moisture or corrosion on connectors and clean gently if needed.
Dry the panel: If moisture is present, allow the panel to dry thoroughly before reassembly.
If still faulty: Replace the user interface panel. If that does not resolve the issue, the main control board may also require replacement.

Medium 3/5

User Interface Panel

Check Price on Amazon

We may earn a commission from links on this page.