Frigidaire Microwave Error Code SE — Shorted Keypad
What this means
Error code SE indicates the control board has detected a continuously shorted key on the membrane keypad. This is different from F2 in that it specifically identifies a sustained electrical short in the keypad circuit rather than an intermittent issue. The microwave may beep and display SE without any key being pressed.
Step-by-step fix
4 stepsReset the microwave
Unplug the microwave for 5 minutes to allow the control board to fully reset.
If the error was caused by moisture or a power surge, a reset may be all that's needed.
Inspect the keypad surface
Look for physical damage, peeling, bubbling, or moisture behind the keypad membrane. Press each button to check for ones that feel different or don't spring back.
A swollen or bubbling keypad membrane indicates internal delamination and must be replaced.
Disconnect and test the keypad
Unplug the microwave, remove the cover, and disconnect the keypad ribbon cable from the control board. Restore power — if the SE error clears, the keypad is the problem.
With the keypad disconnected, the display may show nothing or show a different error — the key point is SE should disappear.
Replace the keypad assembly
Install the new keypad membrane or control panel assembly. Reconnect the ribbon cable.
Ensure the ribbon cable seats firmly and evenly in the connector — a partially inserted cable can cause new errors.
When to call a professional
If replacing the keypad doesn't clear the SE code, the control board itself has a shorted input circuit and needs professional replacement.
Related error codes
Information compiled from manufacturer service manuals, official troubleshooting documentation, and appliance repair industry resources. This guide is for informational purposes only — always consult a qualified technician for complex repairs.
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