Water filter
Makers suggest a new water filter about every six months.
Thermistor
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Pump-recircu
Replaces W11439191
Water left behind after a cycle usually points to the pump.
Valve
Replaces W10870921
Slow filling, no water or no ice can trace back to this valve.
Drain pump a
Replaces W11509485
Water left behind after a cycle usually points to the pump.
Start relay
No ice, or ice that won't drop, points to the ice maker.
Condenser fan motor
Replaces W10909377
A noisy or stopped fan means poor airflow and uneven temperatures.
Switch- rock
Replaces W10847852
Door, lid and control switches stop a cycle when they fail.
Latch
Door, lid and control switches stop a cycle when they fail.
1Water filterF2WC9I1
2ThermistorWPW10511923
3Pump-recircuW11542867
4ValveW10897719Part numbers come from the Sears PartsDirect parts list for the KitchenAid KUIX535HPS02 (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
Behind the lower front grille or on the back of the unit.