Microwave/hood filter
Filters clog with use. The manual lists how often to change it.
Fuse
Replaces W10138793
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Turntable motor
A motor that hums but won't turn, or stops once it's warm, needs replacing.
Surface light bulb
The light bulb this model takes.
Motor, door eject
Replaces W11044953
A motor that hums but won't turn, or stops once it's warm, needs replacing.
1FilterWPW10531156
2FuseW11707984
3Turntable motorWPW10466420
4Light bulbW10709921Part numbers come from the Sears PartsDirect parts list for the Whirlpool YWML55011HS4 (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 door: the label is on the frame. Over-the-range models: sometimes behind the vent grille.