LG LMXS28626 Series - Compressor Check A: Voltage and IPM Output

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12-1 Check A
- There is PC Board located in the PCB case.
The control driver is PC board for the compressor.
- This step shows the source voltage of the driver PC board.
Step1. Open PCB Cover
Step2. Check Driver PCB
- Measure the voltage between the POWER and COMM pins of the connector as shown below.
Check to make sure compressor is receiving voltage from IPM
- In order to determine whether the compressor is operating normally,
check the output voltage during the refrigeration cycle.
- After initial power-up, when the compressor begins to operate, wait 10
minutes before checking.
- The compressor is operating normally if the voltage is greater than 80V.
IPM Output check