MICROWAVE WILL NOT START WHEN THE DOOR APPEARS FULLY CLOSED
Frigidaire / Electrolux Microwave monitor door interlock switch, normally closed 5304509459, Fixes Microwave will not start when the door appears fully closed
Genuine OEM normally-closed monitor switch used in microwave door-interlock circuitry. It prevents microwave operation when the door is open and is installed behind the microwave front panel.
Part 5304509459Replaces 5304464098Frigidaire / Electrolux
Guaranteed to Fit — or your money back.
Confirm your full appliance model number before ordering.
Confirm your full appliance model number before ordering.
Is This the Right Part?
Part Number5304509459
Replaces5304464098
ManufacturerFrigidaire / Electrolux
Appliance TypeMicrowave
Part TypeMicrowave monitor door interlock switch, normally closed
✅ Cross Reference Information
Current Part Number5304509459
Replaces5304464098
Common Symptoms
- Intermittent no-start associated with door closing or latch engagement.
- Door-interlock-related operation issue in which the monitor-switch state does not change correctly as the door opens and closes.
Check Before Replacing
- With power connected, confirm the door closes fully and the latch engagement feels positive; do not attempt to defeat or bypass any door-safety switch.
- If qualified to service microwaves, disconnect power before testing. The monitor switch's COM-to-NC circuit should be closed with the door open and open with the door closed.
- Do not attribute a blown monitor/line fuse to this switch alone; the complete interlock system and related relay operation require evaluation.
Pro Tip
Do not bypass the monitor switch or interchange it with a different switch type. Microwave interlock and shielding functions require verification after service.
Part Details
Part Number5304509459
Part TypeMicrowave monitor door interlock switch, normally closed
ManufacturerFrigidaire / Electrolux
Appliance TypeMicrowave
Primary FunctionNormally-closed microwave monitor door-interlock switch that supports the safety circuit by preventing microwave operation when the door is open.
Installation Notes
- Disconnect electrical power before accessing or servicing the switch.
- Record wire-terminal orientation before disconnecting any leads.
- Professional installation is recommended because microwave shielding and the complete door-interlock system must be properly tested after replacement.
- Use only the correct identical switch type; do not bypass, modify, or substitute a different contact configuration.
Verified Compatible Models
79080322310, 79080323310, 79080329310, 79080332310, 79080333310, 79080339310, 79080342310, 79080343310, 79080349310, 79080352310, 79080353310, 79080354310, 79080359310, 79080362310, 79080363310
Fitment reminder: Match the complete appliance model number, including suffix or revision where applicable, before ordering.
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