Samsung AC026JNNCEH Service Manual page 60

4-4-15 Comp Vlimit error/Comp current limit error
1.Checklist :
1) Is the PFC Shunt(PF2:R062,R063,PF3:R807,R808,R809) 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 after power off.
IIs the O.C error occurred?
Is the connection of compressor wire is
normal?
Is the O.C error occurred again?
Is the condition of indoor/outdoor
temperature normal load?
Is the position of temperature sensor and
sensing value normal?
Is the compressor body and interphase
resistance insulated?
Exchange the Outdoor PBA
Samsung Electronics
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
Yes
Is the O.C error occurred
again?
No
No
Terminate the service
Connect the comp wire normally
Terminate the service
Restart after returning to the normal load
No
Terminate the service
Correct the sensor position or exchange the
sensor
Exchange the Outdoor PBA
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