Component Specifications - Maytag ACM1580AB Service Manual

Component Specifications

To avoid electrical shock, personal injury, or death, disconnect power to unit and discharge capacitor before
servicing, unless testing requires power.
Illustration
High voltage
transformer
Filament
Secondary
winding
terminal
Primary
terminals
Magnetron
High voltage
capacitor
High voltage diode
Heating element
Damper motor
Turntable motor
16026267
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CAUTION
Component
Disconnect wires from terminals.
Measure for continuity of following
terminals:
Ohmmeter set on R x 1 scale
Primary winding................................
Secondary terminal to ground...........
Filament winding...............................
Ohmmeter set on R x 1000 scale
Primary winding to ground ................
Filament winding to ground...............
Disconnect wires from terminals.
Measure for continuity of following
terminals:
Ohmmeter set on R x 1 scale
Filament winding...............................
Ohmmeter set on R x 1000 scale
Filament winding to ground...............
Discharge capacitor
Remove wires from capacitor terminals
and connect ohmmeter, set on highest
resistance scale to terminals.
Also check between each terminal and
capacitor case.
Discharge capacitor
Remove diode lead from capacitor and
connect ohmmeter.
Reverse leads for second test.
Disconnect wires from terminals.
Measure resistance across heating
element.
Terminal to terminal..........................
Disconnect wires from terminals.
Measure for resistance:
Terminal to terminal..........................
Disconnect wires from terminals.
Measure for resistance:
Terminal to terminal..........................
Testing
Approximately 0.3 − 0.6 Ω
Approximately 70 − 100 Ω
Less than 1 Ω
Infinite
Infinite
NOTE: When testing magnetron verify
magnetron gasket is positioned correctly
and verify gasket is in good condition.
Less than 1 Ω
Infinite
Perform Microwave Power Test.
Between Terminals: Meter should
momentarily deflect towards zero then
return to over 5 MΩ. If no deflection
occurs, or if continuous deflection
occurs, replace capacitor.
Terminal to Case: Infinite resistance
Infinite resistance should be measured in
one direction and 50KΩ or more in the
opposite direction.
NOTE: Ohmmeter must contain a battery
of 6 volts minimum.
Approximately 9.6 Ω @ 68 − 86°F
Approximately 2930 Ω
Approximately 3480 Ω
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