Thermostat
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.
Turntable motor
A motor that hums but won't turn, or stops once it's warm, needs replacing.
Halogen light bulb
The light bulb this model takes.
Micro-switch
Replaces WB24X10075
Door, lid and control switches stop a cycle when they fail.
Door interlock switch lever
Door, lid and control switches stop a cycle when they fail.
1ThermostatWB20X10059
2CapacitorWB27X10011
3Turntable motorWB26X10233
4Light bulbWB36X10213Part numbers come from the Sears PartsDirect parts list for the GE JVM1950DR1BB (view the list), checked November 15, 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.