9
air-conditioners.
5."successful"or "unsuccessfull" shown
in the operation state area indicates
whether the transmission is conrmed or
not.
4-3 Malfunction and Protection Code Table
ERROR Code ERROR Contents Description ERROR Code ERROR Contents Description
H3
Outdoor adding malfunction
(valid for host unit)
PA Defrost Protection
H2
Outdoor decreasing
malfunction (valid for host unit)
P8
Compressor Current 3rd
Protection
H1
Net communication
malfunction
P7
Compressor Current
2nd Protection
EF Other malfunction P5
Condenser High Temp.
Protection
E4T4 Temp. Sensor malfunction P4
Discharge Pipe Temp.
Protection
E3T3 Temp. Sensor malfunction P3
Compressor Current 1st
Protection
E2 Sensor malfunction P2
Discharge Low-pressure
Protection
E1
Phase sequence or lack of
phase
P1
Discharge High-
pressure Protection
E0 Communication malfunction P0
Compressor High Temp.
Protection
PF Other Protection
PE Oil Balance
PD Oil Return
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