Filter
Replaces 8206230
Filters clog with use. The manual lists how often to change it.
Thermal fuse
Replaces 4393308
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Capacitor
Replaces 8206380
A motor that hums but won't start often needs a new capacitor.
Microwave/hood micro-switch
Replaces 8206347
Door, lid and control switches stop a cycle when they fail.
Microwave/hood switch
Replaces 8206345
Door, lid and control switches stop a cycle when they fail.
Microwave/hood switch
Replaces 8206352
Door, lid and control switches stop a cycle when they fail.
Interlock
Replaces 8206353
Door, lid and control switches stop a cycle when they fail.
1Filter8206230A
2Thermal fuseW11707984
3CapacitorW10850446
4Micro-switchW10269458Part numbers come from the Sears PartsDirect parts list for the Whirlpool MH2175XST0 (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.