ERROR CODE
PJ
CAPACITY SETTING ERROR
U0
INSUFFICIENT GAS
U2
DC VOLTAGE OUT OF RANGE
U4
COMMUNICATION ERROR
U7
COMMUNICATION ERROR (OUTDOOR CONTROL PCB AND IPM PCB)
UA
INSTALLATION ERROR
UF
PIPING & WIRING INSTALLATION MISMATCH/WRONG WIRING/INSUFFICIENT GAS
UH
ANTIFREEZE (OTHER ROOMS)
MEANING
6