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Error Code
Over-current protection of
J1
compressor 1
Over-current protection of
J2
compressor 2
Over-current protection of
J3
compressor 3
Over-current protection of
J4
compressor 4
Over-current protection of
J5
compressor 5
Over-current protection for
J6
compressor 6
J7
Gas-mixing protection of 4-way valve
High pressure ratio protection of
J8
system
Low pressure ratio protection of
J9
system
Protection because of abnormal
JA
pressure
JC
Water flow switch protection
Protection because high pressure is
JL
too low
JE
Oil-return pipe is blocked
JF
Oil-return pipe is leaking
malfunction of driving board of
P0
compressor
Driving board of compressor
P1
operates abnormally
Voltage protection of driving board
P2
power of compressor
Reset protection of driving module of
P3
compressor
P4
Drive PFC protection of compressor
Over-current protection of inverter
P5
compressor
Drive IPM module protection of
P6
compressor
Malfunction of drive temperature
P7
sensor of compressor
Drive IPM high temperature
P8
protection of compressor
Desynchronizing protection of
P9
inverter compressor
Malfunction of drive storage chip of
PA
compressor
High-voltage protection of
PH
compressor's drive DC bus bar
Malfunction of current detection
PC
circuit drive of compressor
Low voltage protection for DC bus
PL
bar of drive of compressor
Content
54
Photovoltaic Multi VRF
Error Code
Malfunction of casing top
FU
temperature sensor of compressor 1
Malfunction of casing top
Fb
temperature sensor of compressor 2
Malfunction of exit tube temperature
Fd
sensor of mode exchanger
Malfunction of inlet tube temperature
Fn
sensor of mode exchanger
Malfunction of outdoor ambient
b1
temperature sensor
Malfunction of defrosting
b2
temperature sensor 1
Malfunction of defrosting
b3
temperature sensor 2
Malfunction of liquid temperature
b4
sensor of sub-cooler
Malfunction of gas temperature
b5
sensor of sub-cooler
Malfunction of inlet tube temperature
b6
sensor of vapor liquid separator
Malfunction of exit tube temperature
b7
sensor of vapor liquid separator
Malfunction of outdoor humidity
b8
sensor
Malfunction of gas temperature
b9
sensor of heat exchanger
Malfunction of oil-return temperature
bA
sensor 1
bH
Clock of system is abnormal
Malfunction of inlet tube temperature
bE
sensor of condenser
Malfunction of outlet tube
bF
temperature sensor of condenser
High-pressure sensor and
bJ
low-pressure sensor are connected
reversely
Malfunction of temperature sensor of
bP
oil-return 2
Malfunction of temperature sensor of
bU
oil return 3
Malfunction of temperature sensor of
bb
oil return 4
H0
Malfunction of driving board of fan
Driving board of fan operates
H1
abnormally
Voltage protection of driving board
H2
power of fan
Reset protection of driving module of
H3
fan
H4
Drive PFC protection of fan
Over-current protection of inverter
H5
fan
H6
Drive IPM module protection of fan
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