YMGI VRFO-72VP-U2C(55)5, Installation Instructions & User Manual

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YMGI
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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