Monogram Display Backlight or UI Power Issue

Display is blank or very dim, but the unit still cools.

Advertisements

Safety Warning

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.

Advertisements

Possible Causes

Failed display backlight LEDs, Loose UI power connector, Faulty low-voltage regulator on UI board, Main control board not supplying correct voltage to UI

How to Fix / Troubleshooting

Safety: Unplug the unit before accessing the control panel or boards.

  • Check for faint display: Shine a flashlight at an angle on the display. If you can see numbers faintly, the backlight has failed.
  • Inspect UI connections: Remove the control panel and verify that all connectors are secure.
  • Test low-voltage supply: If qualified, measure the DC voltage supplied to the UI from the main board. If missing, the main board may be faulty.
  • Replace UI or board: Replace the UI if the backlight or display driver has failed. If the UI is good but not receiving power, replace the main control board.

Cooling can continue without a display, but temperature adjustments will be difficult; repair is recommended.

Advertisements

Repair Difficulty

Medium 3/5

Required Part

User Interface Control Panel
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements