Sunlight Supply Samsung Programmable Thermostat for Split Systems - Manual (Page 86)

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Current sensor error/Input current sensor error
Indoor display ሱ ل ሱ Outdoor error
Outdoor display ሱ ሱ م
Current sensor error/Input current
sensor error
1.Checklist :
1) Is the PFC Shunt(A*V18***:R062,R063,A*V24***:R807,R808,R809) resistance value correct? Check the resistor is opened
2) Is the IPM Shunt(A*V18***:R451,R452,R453,A*V24***:R413,R414,R415) resistance value correct? Check the resistor is opened
3) Is there no short or open around IC451(A*V18***) or IC451,IC452(A*V24***)?
2. Troubleshooting procedure
Is the PFC shunt and IPM shunt
resistance value correct?
Exchange the Outdoor PBA
Is the current sensor error
appeared again?
YES
Terminate the service
NO
NO
Exchange the Outdoor PBA
Restart a Ōer power oī.
YES