Troubleshooting
Samsung Electronics 4-97
Outdoor unit display
(INVERTER1 PCB)
Judgment Method
Startup, and then if the speed increase is not normally.
Detected by hardware or software.
Cause of problem
Compressor connection error
Defective compressor
Defective PCB
Power off and then restart
Continue
Yes
Is Hot Gas Bypass Valve startup the initial power is
applied?
Replace Hub PCB
No
Yes
Hot Gas Bypass Valve initial startup does it work?
Replace Hot Gas Bypass Valve
No
Yes
Is the resistance value between different
phases of compressor (U-V, V-W, W-U)
less than 2?
Replace compressor
No
Yes
No
Does the compressor connection wire properly
connect to the compressor?
Check the connection wire
1. How to check
غ
AM038/048/055KXWD✳✳
Comperssor starting error
(cont.)
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