Samsung Keypad / Membrane Failure

Microwave keypad buttons do not respond or only some keys work.

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 touch panel, Loose ribbon cable, Failed control PCB input

Safety: Unplug the microwave before removing the control panel.

Test multiple keys: Note which keys fail (e.g., numbers, Start, Stop). If entire sections are dead, the membrane is likely failing.
Clean surface: Wipe the keypad with a soft, slightly damp cloth and dry. Do not spray cleaner directly onto the panel.
Reseat ribbon cable: Remove the control panel and gently disconnect/reconnect the keypad ribbon cable to the PCB.
Replace keypad: If keys still fail, the membrane keypad or full control panel assembly should be replaced.

Medium 3/5

Membrane Keypad / Control Panel Assembly

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