Samsung AQ09VFUAGM/CV Service Manual page 88

Comp Vlimit error/Comp current limit error
Indoor display
Outdoor display
1.Checklist :
1) Is the IPM Shunt(A*V18***:R451,R452,R453,A*V24***:R413,R414,R415) resistance value correct? Check the resistor is opened
2) Is the condition of surrounding temperature abnormal overload?
3) Is there any problem as like the temperature sensor separation or measurement value error?
4) Is the interphase resistance of compressor normal?
2. Troubleshooting procedure
Restart a er power o .
Is the O.C error occurred?
YES
Is the connec on of compressor
wire is normal?
YES
Is the O.C error occurred again?
YES
Is the condi on of indoor/outdoor
temperature normal load?
YES
Is the posi on of temperature
sensor and sensing value normal?
YES
Is the compressor body and
interphase resistance insulated?
NO
Exchange the compressor
Outdoor error
Comp Vlimit error/Comp current limit
error
NO
NO
NO
NO
YES
NO
YES
Terminate the service
Connect the comp wire normally
Terminate the service
Restart a er returning to the normal load
NO
Is the O.C error Terminate the
occurred again? service
Correct the sensor posi on or exchange the sensor
Exchange the Outdoor PBA
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