Compressor Starting Error - Samsung AG042KSVANH Service Manual

4-3-34. Compressor starting error

Inverter / Hydro control part display
Judgment Method
Cause of problem
1. Inspection Method
Power Off and then Restart
Is Hot Gas Bypass Valve startup
the initial power is applied?
Hot Gas Bypass Valve initial
startup does it work?
value between different phases of
compressor (U V,V W,W U)
between the body of Compressor and
Does the Compressor
connection wire properly connect to
the compressor?
(INVERTER1 PCB)
(INVERTER2 PCB)
∙ Startup, and then if the speed increase is not normally.
∙ Detected by H/W or S/W.
∙ Compressor connection error
∙ Defective Compressor
∙ Defective PCB
Yes
Yes
Is the resistance
less than 2Ω?
Yes
Is the resistance
chassis MΩ?
Yes
Yes
Continue
No
Hub Replace PCB.
No
Replace Hot Gas Bypass Valve.
No
Replace Compressor.
No
Replace Compressor.
No
Check the connection wire.
75