Acson A5LC User Manual

ASCON Service Guide Book
71
Error Codes
Error
Codes
Error Description Error
Codes
Error Description
0 Normal F6 Heat exchanger overheat
U0 Insufficient gas H0
Compressor sensor system
abnormality
U2 DC voltage out of range H3 High pressure switch error
U4 Communication error H6 Position sensor abnormality
U7
Signal transmission error (on
outdoor unit PCB)
H8 AC current sensor error
UA Installation error H9 Outdoor air thermistor short / open
UF
Communication Error (indoor and
outdoor) piping and wiring
J1 Pressure sensor error
UH Anti-freeze function in other room J3
Compressor discharge pipe
thermistor short /open / misplaced
A1 Indoor PCB error J5 Suction pipe thermistor short/ open
A3 Water pump error J6 Outdoor heat exchanger
A5 Antifreeze J7
Subcooling heat exchanger thermistor
short/ open
A6 Indoor fan motor abnormal J8 Liquid pipe thermistor short/ open
C4
Indoor heat exchanger thermistor
short/ open
J9 Gas pipe thermistor abnormality
C9 Indoor room thermistor short/ open LC
Communication error (control PCB
and inverter PCB)
E1
Outdoor PCB error
L1
Outdoor PCB error
E3
High pressure protection
L3
Electrical box temperature rise
E4
Low pressure protection
L4
Heat sink overheat
E5
Compressor motor lock
L5
IPM error / IGBT error
E6
Compressor start-up error
L8
Electrical thermal switch
E7
Outdoor DC fan motor lock
L9
Stall prevention
E8
Ac input over current
P1
Open phase or voltage unbalance
E9
EXV error
P4
Heat sink thermistor short / open
EA
4-way valve error
PJ
Capacity setting error
F3
Discharge pipe overheat

Acson A5LC Specifications

General

Brand	Acson
Model	A5LC
Category	Air Conditioner
Language	English