Marvel Display Backlight / UI Power Failure

Display is blank but unit seems to run (you can hear compressor or pump).

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

Failed display board, loose display connector, partial control board failure, low voltage to UI

Steps:

Unplug the unit and remove the control panel to access the display board.
Check the harness or ribbon cable from the main board to the display for secure connections.
Inspect the display board for burned components or corrosion.
If wiring is intact, replace the display/user interface board with a Marvel OEM part.
If a new display does not light, the main control board may not be supplying UI power and should be replaced.

Medium 3/5

Display Board / User Interface

Check Price on Amazon

We may earn a commission from links on this page.