Proline Keypad / Membrane Switch Failure

Microwave keypad buttons do not respond or respond intermittently; display is on.

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

Worn membrane keypad, Cracked keypad ribbon cable, Moisture damage behind control panel, Faulty keypad scan circuit on control board

User-level checks:

Unplug the microwave for 5 minutes, then plug back in and test.
Wipe the keypad surface with a slightly damp cloth and dry thoroughly; avoid excessive moisture.
Test all keys to see if only certain areas are unresponsive, indicating membrane wear.

If keys remain unresponsive:

The membrane keypad or control panel assembly must be replaced. This involves removing the control panel and should be done by a technician.

Medium 3/5

Membrane Keypad

Check Price on Amazon

We may earn a commission from links on this page.