Owner manual

12-15
O.C(Over Current) error
Indoor display
ሱلሱ
Outdoor error
Outdoor display
للሱ
Comp starting error
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
Is the O.C error occurred?
Terminate the service
NO
YES
Is the connecƟon of compressor
wire is normal?
YES
Is the compressor body and
interphase resistance insulated?
NO
Exchange the Outdoor PBA
Connect the comp wire normally
YES
NO
Exchange the compressor
Is the O.C error occurred again?
Terminate the service
NO
YES
Restart aŌer power oī.
Is the condiƟon of indoor/outdoor
temperature normal load?
Restart aŌer returning to the normal load
YES
NO
Is the O.C error
occurred again?
Terminate the
service
YES
NO
Is the posiƟon of temperature
sensor and sensing value normal?
Correct the sensor posiƟon or exchange the sensor
YES
NO