Door Interlock Switches; Lamp Transformer - 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.

DOOR INTERLOCK SWITCHES

Refer to page 4-6 for the procedure for access-
ing the door interlock switches.
1. Unplug microwave oven or disconnect
power.
2. Disconnect the wires from the switch ter-
minals.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test leads to the
terminals of the primary or secondary
interlock switch (normally-open). The
meter should indicate an open circuit (in-
finite).
5. Touch the ohmmeter test leads to the
terminals of the monitor interlock switch
(normally-closed). The meter should indi-
cate a closed circuit (0 Ω).
NOTE: Pressing the actuator button should
result in opposite readings (normally-open
should read closed, and normally-closed should
read open).
WARNING
Electrical Shock Hazard

LAMP TRANSFORMER

Refer to page 4-8 for the procedure for access-
ing the lamp transformer.
1. Unplug microwave oven or disconnect
power.
2. Disconnect one of the wire connectors
from the LOAD and LINE transformer ter-
minals.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test leads to the
LOAD transformer terminals. The meter
should indicate less than 1 Ω.
5. Touch the ohmmeter test leads to the
LINE transformer terminals. The meter
should indicate approximately 45 Ω.
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