Frigidaire Microwave door switch, normally open, top and bottom 5304509460, Replaces 5304520020, 5304464099

Genuine OEM microwave door/interlock switch that detects door position and is used in the top and bottom switch locations.

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✅ Cross Reference Information

Common Symptoms

• Microwave does not start with the door closed
• Microwave stops unexpectedly or operates intermittently
• Circuit breaker or fuse trips when the door is opened or closed
• Microwave starts or behaves unexpectedly in response to door movement

Check Before Replacing

• Disconnect the microwave from electrical power before inspecting or testing the switch.
• Inspect the switch, terminals, actuator, and surrounding door-switch bracket for overheating, arcing, burning, cracking, or looseness.
• With power disconnected and the switch isolated as required by the appliance service procedure, test the switch for continuity between the specified terminals while manually actuating the plunger; compare the result with the switch's normally-open specification and the model's wiring diagram.
• Check that the door latches and switch actuator engage smoothly without forcing or excessive movement.
• If a fuse or breaker trips, do not repeatedly operate the microwave; have the complete door-interlock system checked.

Pro Tip

Part Details

Key Features

• Genuine Frigidaire OEM part
• Normally-open door switch specification
• Used in top and bottom microwave door-switch positions
• Door-position sensing and interlock function
• Replaces Frigidaire OEM numbers 5304520020 and 5304464099

Installation Notes

• Disconnect electrical power before beginning service.
• Use the appliance's model-specific service instructions to access the door-switch assembly.
• Document wire locations before disconnecting them and reconnect each wire to its original terminal.
• Install this part only in the specified top or bottom switch location; do not substitute it for the center monitor switch unless the model documentation explicitly specifies that match.
• After installation, confirm that the door closes and latches normally and that the switch actuator is engaged without binding.
• If the microwave has experienced arcing, fuse failure, or breaker tripping, inspect the related door-latch and interlock components rather than replacing the switch alone without further checks.

Verified Compatible Models

00462166, 00469295, 20462165, 30469294, 50462164, 50469293, 60515303, 70462163, CFMV1645TBA, CFMV1645TDA, CFMV1645TSA, CFMV1645TWA, CGMV176NTBA, CGMV176NTDB, CGMV176NTFA

Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.