![Amana MVH140E Скачать руководство пользователя страница 27](http://html.mh-extra.com/html/amana/mvh140e/mvh140e_service-manual_2917041027.webp)
27
RS2100005 Rev 0
Troubleshooting Procedures
Display does not count
down whem START pad
is pressed.
Check if fan motor
operates when
START is pressed.
Does fan
motor operate
when START
is pressed.
Measure
resistance of
high voltage
capacitor.
Replace
thermostat.
NO
YES
Unit operates.
Does capacitor
have correct
resistance. Refer to
Testing Procedures
on page 21.
Replace
magnetron.
Replace
high voltage
capacitor.
YES
NO
Place a jumper
wire across
thermostat.
Does fan
motor
operate.
Measure
resistance of
fan motor,
approximately
38 ohms.
Is the
resistance of
fan motor
correct.
Replace
circuit
board.
Replace
fan motor.
NO
NO
YES
YES