Gree Ultra Heat GMV-VQ72W/A-F, Service Manual

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Ultra Heat GMV VRF Technical Service Manual_Heat Recovery Serial MAINTENANCE
118
Outdoor:
Error Code Content Error Code Content
E0 Malfunction of ODU FA
Limited frequency reduction for high
pressure protection
E1 High-pressure protection FH
Limited frequency reduction for low pressure
protection
E2 Discharge low-temperature protection FC
Limited frequency reduction for power
protection
E3 Low-pressure protection FL
Limited frequency reduction for IPM
temperature protection
E4
High discharge temperature protection of
compressor
FE Current sensor of compressor 4 is abnormal
Ey
Outdoor ambient temperature is beyond
normal range
FF Current sensor of compressor 5 is abnormal
En compressor power protection 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
bC
Protection because the temperature sensor
at the top of compressor 1 is loose
P2
Voltage protection of driving board power of
compressor
bL
Protection because the temperature sensor
at the top of compressor 2 is loose
P3
Reset protection of driving module of
compressor
bE
Malfunction of inlet tube temperature sensor
of condenser
P4 Drive PFC protection of compressor bF
Malfunction of outlet tube temperature
sensor of condenser
P5
Over-current protection of inverter
compressor
bJ
High-pressure sensor and low-pressure
sensor are connected reversely
P6 Drive IPM module protection of compressor bP
Malfunction of temperature sensor of
oil-return 2
P7
Malfunction of drive temperature sensor of
compressor
bU
Malfunction of temperature sensor of oil
return 3