Part 4 Trouble Shooting
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Items Contents
Purpose
Checking the communication state between Main PCB and Inverter PCB
Generation of noise source interfering with communication
Condition for Generation
Resetting power source: Wait for 3 minutes after turning the power of the product off.
Items for checking Sub-items for checking
Resetting
power source
Connector
Insufficient insertion
of housing
Damage of
wire coating
Check the Heat sink
and Chassis Panel
Checking
power source
LED Off
Damage of
wire coating
Replacement of
inverter PCB
Replacement of
main PCB
※ It should not be short
6.7 Troubleshooting Outdoor Error
CH 52 (PCB Communication Error)
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