Sensor
Replaces 422089
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Valve-blk
Replaces 492442
Slow filling, no water or no ice can trace back to this valve.
Fan blade
Replaces 491577
A noisy or stopped fan means poor airflow and uneven temperatures.
Burner housing
Replaces 423442
Burners, caps and grates wear and crack with heat.
1Sensor00422089
2Valve-blk00603716
3Fan blade00491577
4Burner housing00423442Part numbers come from the Sears PartsDirect parts list for the Bosch HDS252U/01 (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.