Grease filter
Metal grease filters catch cooking grease. Most can be washed; a bent or torn one should be replaced.
Elite microwave fuse
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
High-voltage capacitor
A motor that hums but won't start often needs a new capacitor.
Elite microwave door interlock switch
Door, lid and control switches stop a cycle when they fail.
Elite microwave thermal cut-off
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Elite microwave thermal cut-off
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Thermostat
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Door interlock switch
Door, lid and control switches stop a cycle when they fail.
Elite microwave latch body
Door, lid and control switches stop a cycle when they fail.
1Grease filter5304509444
2Microwave fuse5304509451
3Capacitor5304509478
4Interlock switch5304509459Part numbers come from the Sears PartsDirect parts list for the Frigidaire CFMV1645TSA (view the list), checked November 15, 2026 and AppliancePartsPros (source), checked November 6, 2026. Amazon buttons open a search for the part number; we may earn a commission.
Where the model number is
Open the door: the label is on the frame. Over-the-range models: sometimes behind the vent grille.