Cooling Fan Motor; Magnetron Thermostat - KitchenAid KBMS1454R Technical Education

Disconnect power before servicing.
Replace all parts and panels before operating.
Failure to do so can result in death or electrical shock.

COOLING FAN MOTOR

Refer to page 4-12 for the procedure for ac-
cessing the cooling fan motor.
1. Unplug microwave oven or disconnect
power.
2. Disconnect the wire connectors from the
cooling fan motor terminals.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test leads to the
motor terminals. The meter should indicate
approximately 10 Ω.
WARNING
Electrical Shock Hazard
MAGNETRON THERMOSTAT (N.C.)
Refer to page 4-15 for the procedure for ac-
cessing the magnetron thermostat.
1. Unplug microwave oven or disconnect
power.
2. Disconnect the wires from the magnetron
thermostat terminals.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test leads to the
terminals. The meter will indicate a closed
circuit (0 Ω) at room temperature. NOTE:
The thermostat opens @ 293°F / 145°C
and resets (closes) @ 250°F / 121°C.
5-5