SE
RCA Stuck Key / Shorted Keypad Error

Microwave beeps repeatedly and displays SE; keys may activate by themselves or not respond.

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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

Shorted membrane keypad, Moisture or cleaning fluid behind keypad, Damaged keypad ribbon cable, Failed control panel PCB

How to Fix / Troubleshooting

Safety Warning: Unplug the microwave before removing the control panel.

Quick actions:

  • 1. Power reset: Unplug the RCA microwave for 5–10 minutes. Plug back in and see if SE clears. If it returns quickly, a key is likely stuck or shorted.
  • 2. Dry the panel: If the keypad was recently cleaned, leave the door open and allow the panel to dry for several hours. Avoid spraying cleaner directly on the keypad; instead, spray a cloth and wipe.

Keypad inspection:

  • 3. Remove control panel: Unplug the unit. Remove the top grille or outer cover, then remove the screw(s) securing the control panel and gently pull it forward.
  • 4. Check ribbon cable: Disconnect and inspect the flat ribbon cable from the keypad. Look for corrosion, cracks, or burnt spots. Reseat the cable firmly.

If SE persists, the membrane keypad or entire control panel assembly must be replaced. This is a common repair and usually involves transferring the control board to a new panel assembly.

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Repair Difficulty

Medium 3/5

Required Part

Membrane Keypad
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