Igniter
If the oven won't light, a weak igniter is the most common cause.
Temperature sensor
Replaces WB21T10007
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Valve burner 3r 310
Slow filling, no water or no ice can trace back to this valve.
Cooling fan sensor board
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
1IgniterWB13X40448
2SensorWB21X22134
33r 310WB21X43803Part numbers come from the Sears PartsDirect parts list for the GE ZDP486NDT2SS (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 or pull out the storage drawer: the plate is on the frame. Some models: behind the kick panel.