Samsung AR18TXFCAWKXEU - O.C (Over Current) Error

85
SAMSUNG ELECTRONICS
9-2-13 O.C(Over Current) error
Indoor display
7 SEG DISPLAY DESCRIPTION
C464 IPM Over Current(O.C) Error
Outdoor display
Current sensor error
Current sensor error
: LAMP ON : LAMP OFF : LAMP BLINK
1. Checklist :
1) Is the IPM Shunt 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 o.
Isthe O.C erroroccurred?
Isthe connection of compressor wireis normal?
Isthe O.C erroroccurred again?
NO
YES
NO
YES
NO
YES
Terminatethe service
Connectthecomp wirenormally
Terminatethe service
Isthe condition of indoor/outdoortemperature
normal load?
NO
Restart afterreturning to the normal load
Isthe O.C error
occurred again?
Terminatethe service
YES
Isthe position of
temperaturesensorand sensing
valuenormal?
NO
Isthe compressor body
andinterphase resistance
insulated?
NO
YES
Correctthesensorposition or
exchangethe sensor
Exchangethe Outdoor PBA
Exchangethecompressor