Communication error between the display board and main control; E14 displayed.

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 harness between the UI and main PCB, corroded connector pins, failed display board, failed main control PCB.

Safety First: Unplug the unit before accessing any control boards.

Procedure:

Access controls: Remove the front control panel to expose the user interface (UI) board and its wiring harness to the main control.
Check connections: Disconnect and reconnect the harness plugs several times to remove oxidation from the pins. Ensure that the locking tabs engage securely.
Inspect for damage: Look for burnt components, moisture damage, or cracked solder joints on both boards.
Board substitution: If the wiring is intact, replace the display/UI board first (this is often easier and cheaper). If E14 persists, replace the main control PCB.

Hard 4/5

User Interface Board

Check Price on Amazon

We may earn a commission from links on this page.