Water-cooled Heat Recovery DC Inverter VRF
50
Error Code
Content
Error Code
Content
LA
For single control over multiple units,
IDU series is inconsistent.
dC
Setting capacity of DIP switch code is
abnormal.
LH
Alarm due to bad air quality.
dL
Malfunction of air outlet temperature
sensor.
LC
IDU is not matching with outdoor unit.
dE
Malfunction of indoor CO
2
sensor.
LL
Malfunction of water flow switch.
dF
Malfunction of upper water
temperature sensor of water tank.
LE
Rotation speed of EC DC water pump
is abnormal.
dJ
Malfunction of backing water
temperature sensor.
LF
Malfunction of water shunt valve
setting.
dP
Malfunction of inlet tube temperature
sensor of generator.
LJ
Setting of functional DIP switch code is
wrong.
dU
Malfunction of drainage pipe
temperature sensor of generator.
LP
Zero-crossing malfunction of PG motor.
db
Debugging status.
LU
Indoor unit’s branch is not inconsistent
for one-to-more unit of heat recovery
system.
dd
Malfunction of solar power
temperature sensor.
d1
Indoor PCB is abnormal.
dn
Malfunction of swing parts.
Outdoor:
Error Code
Content
Error
Code
Content
E0
Malfunction of ODU.
FH
Electric current sensor of compressor 1
is abnormal.
E1
High-pressure protection.
FC
Electric current sensor of compressor 2
is abnormal.
E2
Discharge low-temperature protection.
FL
Electric current sensor of compressor 3
is abnormal.
E3
Low-pressure protection.
FE
Electric current sensor of compressor 4
is abnormal.
E4
High discharge temperature protection of
compressor.
FF
Electric current sensor of compressor 5
is abnormal.
J0
Protection for other modules.
FJ
Electric current sensor of compressor 6
is abnormal.
J1
Over-current protection of compressor 1.
FP
Malfunction of DC motor.
J2
Over-current protection of compressor 2.
FU
Malfunction of casing top temperature
sensor of compressor 1.
J3
Over-current protection of compressor 3.
Fb
Malfunction of casing top temperature
sensor of compressor 2.
J4
Over-current protection of compressor 4.
Fd
Malfunction of refrigerant out tube
temperature sensor of mode
exchanger.
J5
Over-current protection of compressor 5.
Fn
Malfunction of refrigerant in tube
temperature sensor of mode
exchanger.
J6
Over-current protection for compressor 6.
b1
Malfunction of outdoor ambient
temperature sensor.
J7
Gas-mixing protection of 4-way valve.
b2
Malfunction of defrosting temperature
sensor 1.
J8
High pressure ratio protection of system.
b3
Malfunction of defrosting temperature
sensor 2.
J9
Low pressure ratio protection of system.
b4
Malfunction of liquid-out temperature
sensor of sub-cooler.
JA
Protection because of abnormal pressure.
b5
Malfunction of gas-out temperature
sensor of sub-cooler.
JC
Water flow switch protection.
b6
Malfunction of inlet tube temperature
sensor of vapor liquid separator.
JL
Protection because high pressure is too low.
b7
Malfunction of outlet tube temperature
sensor of vapor liquid separator.
JE
Oil-return pipe is blocked.
b8
Malfunction of outdoor humidity sensor.
Summary of Contents for GMV-WQ120WM/A-F
Page 58: ......
