LG LMH2235ST, Service Manual

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COMPONENTS TEST RESULTS
Normal:
Momentarily Infinite and
then soon reach 10 mega.
ohms
Normal: Infinite.
Normal: Below 100 ohms
Abnormal:Infinite
Normal:Infinite.
Abnormal: Below 100 ohms
1. Remove wire leads.
2. Measure resistance. (ohm meter scale: Rx1000)
• Terminal to terminal
• Terminal to case
1. Measure continuity. Forward.
(ohm meter scale: Rx1000)
2. Measure continuity. Reverse.
(ohm meter scale: Rx1000)
CAPACITOR
DIODE
Some inexpensive ohm
meters may indicate infinite
resistance in both directions.
1. Measure continuity.
(ohm meter scale: Rx1)
2. Remove the lead wires and operate oven at
power level 1 through power level 10.
RELAY 2
1. Remove lead wires.
2. Measure resistance. (ohm meter scale: Rx1)
Turbo speed : White and Brown
High speed: White and Blue
Low speed: White and Violet
Slow speed: white and Yellow
Normal:
Turbo speed: Approximately
20~25ohms
High speed: Approximately
40~45ohms
Low speed: Approximately
50~55ohms
Slow speed: Approximately
60~65ohms
VENTILATION MOTOR
Power
Level
Open
Close
1
2
3
4
5
6
7
8
9
10
4 Sec
6 Sec
8 Sec
10 Sec
12 Sec
14 Sec
16 Sec
18 Sec
20 Sec
22 Sec
18 Sec
16 Sec
14 Sec
12 Sec
10 Sec
8 Sec
6 Sec
4 Sec
2 Sec
0 Sec