Safety: Disconnect power before working on the control panel.

Test all keys: Note which keys work and which do not. Patterns (e.g., entire row/column) suggest a matrix issue.
Inspect keypad overlay: Look for bubbles, cracks, or signs of liquid damage.
Check ribbon cable: Remove the control panel and inspect the keypad ribbon for cracks or discoloration. Reseat it in the control board connector.
Replace keypad: If issues persist, replace the membrane keypad or full control panel assembly with the correct Whirlpool part.

Microwave keypad buttons are unresponsive or only some keys work

Possible Causes