Grundig Membrane Keypad Wear or Failure

Microwave buttons do not respond or respond intermittently; some keys work, others do not.

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 contacts, Cracked keypad overlay, Damaged keypad ribbon cable, Liquid ingress into keypad

Safety first: Unplug the microwave before working on the control panel.

Step-by-step checks:

1. Test all keys: Note which keys fail; if failures are in a pattern (row/column), the membrane is likely at fault.
2. Inspect for damage: Look for cracks, bubbles, or discoloration on the keypad surface.
3. Reseat ribbon cable: Remove the control panel and carefully disconnect and reconnect the keypad ribbon cable.
4. Replace keypad: If issues persist, replace the membrane keypad or entire fascia assembly with a Grundig-compatible part.

Medium 3/5

Membrane Keypad Panel

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