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.
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.
1Water filterF2WC9I1
2ThermistorWPW10511923
3Pump-recircuW11542867
4ValveW10897719Part numbers come from the Sears PartsDirect parts list for the KitchenAid KUID308HPS02 (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.