Broil element
An element that won't heat, or shows a break or blister, needs replacing.
High-limit thermostat
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Magnetron
A motor that hums but won't turn, or stops once it's warm, needs replacing.
Light bulb, 40-watt
The light bulb this model takes.
Sensor assembly
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Monitor switch
Replaces WB24X0830
Door, lid and control switches stop a cycle when they fail.
1Broil elementWB44T10106
2ThermostatWB24T10081
3MagnetronWB27X10516
4Light bulb40A15Part numbers come from the Sears PartsDirect parts list for the GE JTP90DP3BB (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.