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.
Encoder board
Replaces WB27X11022
A dead display or random faults can come from the control board.
Turntable motor
A motor that hums but won't turn, or stops once it's warm, needs replacing.
Latch board
Replaces WB06X10256
A dead display or random faults can come from the control board.
Light bulb
Replaces WB08X10057
The light bulb this model takes.
Halogen light bulb
The light bulb this model takes.
Primary switch
Replaces WB24X0815
Door, lid and control switches stop a cycle when they fail.
Monitor switch
Replaces WB24X0817
Door, lid and control switches stop a cycle when they fail.
1ThermostatWB20X10048
2CapacitorWB27X11031
3Encoder boardWB27X32632
4Turntable motorWB26X10193Part numbers come from the Sears PartsDirect parts list for the GE PSA9120SF6SS (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.