Microwave keypad does not respond or only some buttons work; no error code shown.

Safety: Unplug before removing the control panel.

Steps:

• 1. Clean surface: Wipe the keypad with a dry cloth. Do not spray cleaner directly onto it.
• 2. Dry out moisture: If the issue started after heavy steam cooking, leave the door open and let the unit dry for several hours.
• 3. Test all keys: Note which keys work and which do not; patterns often indicate membrane failure.
• 4. Inspect ribbon (DIYers): Remove the control panel and reseat the keypad ribbon cable on the control board.

Resolution: Replace the membrane keypad or entire control panel assembly with the correct IKEA-compatible part.