Temperature sensor
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Relay control board
Replaces WB27T11326
A dead display or random faults can come from the control board.
Cooling fan assembly
Replaces WB26T10068
A noisy or stopped fan means poor airflow and uneven temperatures.
Light bulb
The light bulb this model takes.
Board sensor
Replaces WB27T11451
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Door switch
Door, lid and control switches stop a cycle when they fail.
Toaster oven temperature limit switch
Replaces WB24T10180
Door, lid and control switches stop a cycle when they fail.
1SensorWB21X10165
2Control boardWB27X25594
3Fan assemblyWB26X35088
4Light bulbWB25T10102Part numbers come from the Sears PartsDirect parts list for the GE JK3500DF1BB (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 oven door: the plate is on the frame or the side trim.