YMGI
•
Your Modern Green Idea
68
Error Indication
Inquiry method of malfunction display: combine division number and content number to check the corresponding
malfunction.
Indoor:
Error
Code
Content
Error
Code
Content
L0
Malfunction of IDU
d2
Malfunction of lower water temperature sensor of water
tank
L1
Protection of indoor fan
d3
Malfunction of ambient temperature sensor
L2
Auxiliary heating protection
d4
Malfunction of entry-tube temperature sensor
L3
Water-full protection
d6
Malfunction of exit-tube temperature sensor
L4
Abnormal power supply for wired controller
d7
Malfunction of humidity sensor
L5
Freeze prevention protection
d8
Malfunction of water temperature sensor
L7
No main IDU
d9
Malfunction of jumper cap
L8
Power supply is insufficient
dA
Web address of IDU is abnormal
L9
For single control over multiple units, number of IDU is
inconsistent
dH
PCB of wired controller is abnormal
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 CO2 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 backwater temperature sensor
LF
Malfunction of 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 consistent for one-to-more unit
of heat pump system
dd
Malfunction of solar power temperature sensor
d1
Indoor PCB is poor
dn
Malfunction of swing parts
E0
Malfunction of ODU
FC
Current sensor of compressor 2 is abnormal
E1
High-pressure protection
FL
Current sensor of compressor 3 is abnormal
E2
Discharge low-temperature protection
FE
Current sensor of compressor 4 is abnormal
E3
Low-pressure protection
FF
Current sensor of compressor 5 is abnormal
E4
High discharge temperature protection of compressor
FJ
Current sensor of compressor 6 is abnormal
J0
Protection for other modules
FP
Malfunction of DC motor
J1
Over-current protection of compressor 1
FU
Malfunction of casing top temperature sensor of
compressor 1
J2
Over-current protection of compressor 2
Fb
Malfunction of casing top temperature sensor of
compressor 2
J3
Over-current protection of compressor 3
Fd
Malfunction of exit tube temperature sensor of mode
exchanger
J4
Over-current protection of compressor 4
Fn
Malfunction of inlet tube temperature sensor of mode
exchanger
J5
Over-current protection of compressor 5
b1
Malfunction of outdoor ambient temperature sensor
J6
Over-current protection for compressor 6
b2
Malfunction of defrosting temperature sensor 1
J7
Gas-mixing protection of 4-way valve
b3
Malfunction of defrosting temperature sensor 2
J8
High pressure ratio protection of system
b4
Malfunction of liquid temperature sensor of sub-cooler
J9
Low pressure ratio protection of system
b5
Malfunction of gas temperature sensor of sub-cooler
JA
Protection because of abnormal pressure
b6
Malfunction of inlet tube temperature sensor of vapor
liquid separator
JC
Water flow switch protection
b7
Malfunction of exit tube temperature sensor of vapor liquid
separator
JL
Protection because high pressure is too low
b8
Malfunction of outdoor humidity sensor
JE
Oil-return pipe is blocked
b9
Malfunction of gas temperature sensor of heat exchanger
JF
Oil-return pipe is leaking
bA
Malfunction of oil-return temperature sensor 1
P0
malfunction of driving board of compressor
bH
Clock of system is abnormal
P1
Driving board of compressor operates abnormally
bE
Malfunction of inlet tube temperature sensor of condenser
Содержание VRFO-120VP-U2C(55)5
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