Noise filter
Filters clog with use. The manual lists how often to change it.
Fuse
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Electronic control board
A dead display or random faults can come from the control board.
Magnetron
Replaces WB27X11211
A motor that hums but won't turn, or stops once it's warm, needs replacing.
Thermostat
Reads or limits temperature. A failed one can stop the heat or let it run too hot.
Turntable motor
Replaces WB26X10176
A motor that hums but won't turn, or stops once it's warm, needs replacing.
Door interlock switch
Door, lid and control switches stop a cycle when they fail.
Door interlock switch
Door, lid and control switches stop a cycle when they fail.
1Noise filterWB27X11140
2FuseWB27X11138
3Control boardWB27X29822
4MagnetronWB26X23320Part numbers come from the Sears PartsDirect parts list for the GE PEB9159SJ2SS (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.