SE
Proline
Shorted Keypad (Key Stuck Error)
Microwave beeps continuously or intermittently and displays SE; some keys may appear to press themselves.
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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
Moisture inside membrane keypad, Damaged keypad contacts, Contaminated keypad ribbon connector, Faulty control PCB keypad input circuit
How to Fix / Troubleshooting
Safety first: Unplug the microwave.
User-level steps:
- Dry the panel: If the keypad has been exposed to steam or cleaning fluid, leave the door open and allow the unit to dry for 12–24 hours in a warm, dry room.
- Avoid sprays: Do not spray cleaner directly on the keypad. Apply cleaner to a cloth first, then wipe.
- After drying, plug back in and test. If SE reappears, the keypad is likely permanently damaged.
Next steps:
- The membrane keypad or entire control panel assembly will need replacement.
- This requires removing the control panel and transferring the PCB; have a technician perform the repair.
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Repair Difficulty
Medium
3/5
Required Part
Control Panel Assembly
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