High-Voltage Capacitor; Magnetron - Whirlpool MH3184XPB Service Manual

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

HIGH-VOLTAGE CAPACITOR

Refer to page 4-21 for the procedure for ac-
cessing the high-voltage capacitor.
1. Unplug microwave oven or disconnect
power.
2. Discharge the high-voltage capacitor by
touching the leads of a 20,000 Ω resistor
from each of the capacitor leads to chas-
sis ground.
3. Disconnect the wires from one of the
terminals.
4. Set the ohmmeter to the R x 1K scale.
5. Touch the ohmmeter test leads to the ca-
pacitor terminals. The meter should indi-
cate several ohms and gradually return
to infinity.
WARNING
Electrical Shock Hazard
H.V. Capacitor
5-7

MAGNETRON

Refer to page 4-21 for the procedure for ac-
cessing the magnetron.
1. Unplug microwave oven or disconnect
power.
2. Disconnect one of the wires from the
magnetron filament terminals.
3. Set the ohmmeter to the R x 1 scale.
4. Touch the ohmmeter test leads to the
filament terminals. The meter should in-
dicate less than 1 Ω.
5. Touch one of the ohmmeter test leads to
each of the filament terminals and the other
lead to the chassis. The meter should indi-
cate infinite resistance for both terminals.
Filament
Terminals