Haier
Membrane keypad failure
Microwave keypad buttons do not respond or respond intermittently
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Safety Warning
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.
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Possible Causes
Worn membrane contacts, Moisture ingress behind keypad, Loose ribbon cable to control board, Cracked control panel
How to Fix / Troubleshooting
Safety: Unplug the microwave before removing the control panel.
- Clean surface: Wipe the keypad with a soft, slightly damp cloth and then dry thoroughly. Do not spray cleaner directly onto the panel.
- Power reset: Unplug for 5 minutes, then test again.
- Check for pattern: If only certain keys fail (e.g., numbers 1–3), the membrane is likely worn in that area.
- Inspect ribbon cable (advanced): Remove the control panel and reseat the flat ribbon cable connecting the keypad to the control board.
- Replace keypad: If issues persist, replace the membrane keypad or entire control panel assembly with a Haier-compatible part.
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Repair Difficulty
Medium
3/5
Required Part
Membrane Keypad / Control Panel
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