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グリー家庭用エアコン、マルチオンライン、ダクト、ユニット故障コード解釈

First, household air conditioning

Fault code	Fault content	Fault code	Fault content
C1	Fault arc protection	H2	Electrostatic dust removal protection
C2	Leakage protection	H3	Compressor overload protection
C3	Wrong wire protection	H4	System abnormality (high temperature shutdown protection)
C4	No grounding wire	H5	Module protection
C5	Jumper cap fault protection	H6	No feedback from indoor unit PG motor (fan stalling 0)
CD	Alarm for high concentration of carbon dioxide detection	H7	Synchronization failure (compressor phase current overcurrent)
CP	Anti cold wind protection	H8	Indoor unit water full protection
DE	Anti freezing protection	H9	Electric heating tube malfunction
E0	The overall AC voltage drops and the frequency decreases	HC	PFC overcurrent protection
E1	System high voltage protection	HE	Compressor demagnetization protection
E2	Indoor side anti freezing protection	HP	Indoor unit high temperature protection
E3	System low voltage protection	L2	Water tank level switch malfunction
E4	Compressor exhaust protection	L9	High power protection
E5	Low voltage overcurrent protection	Lc	Startup failed
E6	Communication malfunction	LC	Key lock
E7	Pattern Conflict	LD	Phase loss protection (compressor three-phase unbalance protection)
E8	High temperature protection	LE	Compressor blockage protection
E9	Anti cold wind protection	LP	Indoor and outdoor unit models do not match
EC	Incorrect or invalid operation	PO	Minimum cooling or heating
EE	Storage chip failure/indoor PCB board failure	P1	Nominal (rated) cooling or heating
F0	Fluorine collection mode (system fluorine deficiency or blockage protection)	P2	Maximum cooling or heating
F1	Indoor environment temperature sensing bulb open/short circuit	P3	Intermediate cooling or heating
F2	Indoor evaporator temperature sensing bulb open/short circuited	P7	Malfunction of radiator temperature sensing bulb
F3	Outdoor environment temperature sensing bulb open/short circuit	P8	The temperature of the heat sink is too high
F4	Outdoor condenser temperature sensing bulb open/short circuited	PH	The input voltage of the DC bus is too high
F5	Outdoor exhaust temperature sensing bulb open/short circuit	PL	The input voltage of the DC bus is too low
F6	Refrigeration overload frequency reduction	PU	Capacitor charging fault
F7	Refrigeration return oil	U1	Compressor phase current detection circuit fault
F8	Excessive current leads to frequency reduction	U3	DC bus voltage drop
F9	Exhaust too high, frequency reduction	U5	Whole machine current detection fault
FA	Excessive tube temperature leads to frequency reduction	U7	Abnormal directional change of four-way valve
FC	Sliding door malfunction	U8	PG motor zero crossing detection fault
FE	Outdoor overload temperature sensor failure	U9	External machine zero crossing fault
FH	Anti freezing and frequency reduction	UA	On site setting error, abnormal internal and external matching
FP	Indoor sensor detection malfunction	UF	Zero crossing anomaly
H0	Heating, high temperature prevention, and frequency reduction	UH	No feedback from outdoor motor
H1	Outdoor unit defrosting	UL	The exhaust temperature sensor has detached
		UP	The temperature of the outdoor electrical box is too high

Two, multi-online

1. Digital multi-online outdoor unit

Fault code	Fault content	Fault code	Fault content
E1	Compressor high pressure protection	P5	Compressor current protection
E2	Indoor antifreeze protection	PL	DC bus voltage low protection
E3	Compressor low pressure protection	Lc	Compressor startup failed
E4	Compressor exhaust high temperature protection/oil temperature high temperature protection	Hc	PFC module protection
E5	Compressor overcurrent protection/compressor and fan drive failure	LE	Stall
E6	Communication malfunction	PO	Drive module reset
E7	Pattern Conflict	H7	Compressor motor out of step
EA	Oil solenoid valve protection	Ld	Lack of phase
F4	Outdoor environment temperature sensor malfunction	P6	Communication failure from the variable frequency drive section to the main control
F5	Outdoor host inlet temperature sensor malfunction	H5	IPM module protection
F6	The temperature sensor in the middle of the outdoor host is malfunctioning	LF	speeding
F7	Outdoor host outlet temperature sensor malfunction	Pd	Sensor connection protection
F8	Host fixed frequency compressor 1 exhaust temperature sensor malfunction	PE	Warm drift protection
F9	The exhaust temperature sensor of the host digital press is faulty	P9	Communication contactor protection
FA	Engine fixed frequency compressor 1 oil temperature sensor malfunction	E1	High voltage protection
Fb	Host digital press oil temperature sensor malfunction	E3	Low voltage protection
Fc	High voltage sensor malfunction	E4	Exhaust protection
Fd	Low pressure sensor malfunction	H3	The compressor comes with overload protection
FE	Lack of refrigerant protection	E6	Communication failure (between internal and external devices, and handheld device)
b5	Outdoor sub machine inlet temperature sensor malfunction	F4	Outdoor environment temperature sensing head malfunction
b6	Fault in the temperature sensor in the middle of the outdoor sub unit	F5	Outdoor coil inlet temperature sensing head malfunction
b7	Outdoor sub unit outlet temperature sensor malfunction	F6	Outdoor coil middle temperature sensing head malfunction
b8	Fixed frequency compressor 2 exhaust temperature sensor malfunction	F7	Outdoor coil outlet temperature sensing head malfunction
b9	Fixed frequency compressor 3 exhaust temperature sensor malfunction	F9	Variable frequency exhaust temperature sensor malfunction
bA	Fixed frequency compressor 2 oil temperature sensor malfunction	PA	AC current protection (input side)
bb	Fixed frequency compressor 3 oil temperature sensor malfunction	PF	Driver board environmental temperature sensing package malfunction
PH	DC bus voltage high protection	PP	Abnormal AC input voltage
P8	IPM or PFC module overheat protection	C5	Jumper cap malfunction
Pc	Current detection circuit malfunction	PU	Charging circuit problem
P7	IPM or PFC module temperature sensor malfunction	H6	DC motor without speed feedback fault

2. Multi-connection indoor unit (except intelligent multi-connection)

Fault code	Fault content	Fault code	Fault content
CC	Remote locking	EE	Key lock
CH	Conflict flag with valid main manipulator	EH	Auxiliary electric heating malfunction
CL	Clear the wire controller logo	FO	Indoor environmental temperature sensor malfunction
E1	Compressor high pressure protection	F1	Indoor unit inlet pipe temperature sensor malfunction
E2	Indoor antifreeze protection	F2	Indoor unit middle temperature sensor malfunction
E3	Compressor low pressure protection	F3	Indoor unit outlet temperature sensor malfunction
E4	Compressor exhaust high temperature protection/oil temperature high temperature protection	F4	Outdoor environment temperature sensor malfunction
E5	Compressor overcurrent protection/compressor and fan drive failure	F5	Outdoor unit inlet pipe temperature sensor malfunction
E6	Communication malfunction	F6	Fault in the temperature sensor in the middle of the outdoor unit
E7	Pattern Conflict	F7	Outdoor unit outlet temperature sensor malfunction
E8	Indoor fan overload protection	F8	Fault in exhaust temperature sensor of fixed frequency compressor
E9/Eb	Full water protection

3. Intelligent multi-unit indoor unit

Fault code	Fault content	Fault code	Fault content
E1	Compressor high pressure protection	E9/Eb	Full water protection
E2	Indoor antifreeze protection	EE	Key lock
E3	Compressor low pressure protection	EH	Auxiliary electric heating malfunction
E4	Compressor exhaust high temperature protection	F0	Indoor environmental temperature sensor malfunction
E5	Compressor overcurrent protection	F1	Indoor unit evaporator temperature sensor malfunction
E6	Communication malfunction	F2	Condenser temperature sensor malfunction
E7	Pattern Conflict	F3	Outdoor environment temperature sensor malfunction
E8	Indoor fan overcurrent protection	F4	Exhaust temperature sensor malfunction

3. Air pipe machine

(1) Universal model

Fault code	Fault content	Fault code	Fault content
E0	Water pump malfunction (new air duct)	EH	Auxiliary electric heating malfunction
E1	Compressor high pressure protection	F0	Indoor environmental temperature sensor malfunction
E2	Indoor antifreeze protection	F1	Indoor unit evaporator temperature sensor malfunction
E3	Compressor low pressure protection	F2	Condenser temperature sensor malfunction
E4	Compressor exhaust high temperature protection	F3	Outdoor environment temperature sensor malfunction
E5	Compressor overcurrent protection	F4	Exhaust temperature sensor malfunction
E6	Communication malfunction	F5	Monitor environmental temperature sensor malfunction
E8	Indoor fan malfunction	FF	See note
E9	Full water protection	C5	Jumper cap malfunction

2. Gree Central air conditioning C1, C3, C3+, D and CF kitchen and other series of air duct machines For details, see: One article read Gree Central air conditioning duct machine fault code

Four, the new fan:

(1) Fresh air treatment unit:

Fault code	Fault content	Fault code	Fault content
E1	Compressor high pressure protection	F1	Indoor inlet pipe temperature sensing bulb malfunction
E2	Anti low temperature (anti freezing)	F2	Indoor central temperature sensor malfunction
E3	Compressor low pressure protection	F3	Indoor outlet pipe temperature sensing bulb malfunction
E4	Compressor exhaust high temperature protection	F4	Outdoor environmental temperature sensor malfunction
E5	Compressor overcurrent protection	F5	Outdoor inlet pipe temperature sensing bulb malfunction
E6	Communication malfunction	F6	Outdoor central temperature sensor malfunction
E7	Pattern Conflict	F7	Outdoor outlet pipe temperature sensing bulb malfunction
E8	Overload protection for internal fan	F8	Exhaust temperature sensing bulb 1 (fixed frequency) malfunction
E9	Full water protection	F9	Exhaust temperature sensing bulb 2 (frequency converter) malfunction
Fc	High pressure valve malfunction	FA	Oil temperature sensing bulb 1 (fixed frequency) malfunction
Fd	Low pressure valve malfunction	Fb	Oil temperature sensing bulb 2 (frequency converter) malfunction
EH	Auxiliary electric heating malfunction	CL	Clear the main controller logo
H6	PG motor stalling protection	No	No main indoor unit code
F0	Indoor environmental temperature sensor malfunction

(2) Full heat fresh air ventilation unit:

Fault code	Fault content	Fault code	Fault content
E6	Communication malfunction	L1	Humidity sensor malfunction
F0	Indoor environmental temperature sensor malfunction	L0	Malfunctions in the air valve and related components or wiring errors in the centralized control of the air valve
F3	Outdoor outlet pipe temperature sensing bulb malfunction

5. (Villa) Household machine

(1) Single system

Fault code	Fault content	Fault code	Fault content
E1	Compressor high pressure protection	E6	Pump overload protection
E2	System antifreeze protection	E7	Water flow switch protection
E3	Compressor low pressure protection	E8	Fan 1 overload protection
E4	Compressor exhaust temperature protection	E9	System 1: High temperature protection
E5	Compressor overload protection	b1	Compressor 2 high pressure protection
E6	Pump overload protection	b2	System 2 anti freezing protection
E7	Water flow switch protection	b3	Compressor 2 low pressure protection
E8	Fan overload protection	b4	Compressor 2 Exhaust Temperature Protection
E9	System anti high temperature protection	b5	Compressor 2 overload protection
F1	Antifreeze temperature sensor malfunction	b8	Fan 2 overload protection
F3	Defrost temperature sensor malfunction	b9	System 2 Anti high temperature
F5	Exhaust temperature sensor malfunction	F1	Antifreeze temperature sensor 1 malfunction
F7	Outdoor environmental temperature sensor	F2	Antifreeze temperature sensor 2 malfunction
F8	Inlet water temperature sensor malfunction	F3	Defrost temperature sensor 1 malfunction
F9	Water outlet temperature sensor malfunction	F4	Defrost temperature sensor 2 malfunction
EC	communication failure	F5	Exhaust temperature sensor 1 malfunction
E1	Compressor 1 high pressure protection	F6	Exhaust temperature sensor 2 malfunction
E2	System 1 anti freezing protection	F7	Outdoor environment temperature sensor malfunction
E3	Compressor 1 low pressure protection	F8	Inlet water temperature sensor
E4	Compressor 1 Exhaust Temperature Protection	F9	Water outlet temperature sensor
E5	Compressor 1 overload protection	EC	communication failure

(2) Floor heating unit

Fault code	Fault content	Fault code	Fault content
E1	Compressor 1 high pressure protection	b5	Compressor 2 overload protection
E2	System One Anti Freeze Protection	b8	Fan 2 overload protection
E3	Compressor 1 low pressure protection	b9	System 2 Anti high temperature
E4	Compressor 1 Exhaust Temperature Protection	F1	Antifreeze temperature sensor 1 malfunction
E5	Compressor 1 overload protection	F2	Antifreeze temperature sensor 2 malfunction
E6	Pump overload protection	F3	Defrost temperature sensor 1 malfunction
E7	Water flow switch malfunction	F4	Defrost temperature sensor 2 malfunction
E8	Fan 1 overload protection	F5	Exhaust temperature sensor 1 malfunction
E9	System One: High Temperature Prevention	F6	Exhaust temperature sensor 2 malfunction
b1	Compressor 2 high pressure protection	F7	Outdoor environment temperature sensor malfunction
b2	System 2 anti freezing protection	F8	Inlet water temperature sensor malfunction
b3	Compressor 2 low pressure protection	F9	Water outlet temperature sensor malfunction
b4	Compressor 2 Exhaust Temperature Protection	EC	communication failure

6. Unit unit (air-cooled cold air type)

Fault code	Fault content	Fault code	Fault content
E1	Compressor 1 high pressure protection	C1	Compressor 3 high pressure protection
E2	System 1 anti freezing protection	C2	System 3 anti freezing protection
E3	Compressor 1 low pressure protection	C3	Compressor 3 low pressure protection
E4	Compressor 1 Exhaust High Temperature Protection	C4	Compressor 3 Exhaust High Temperature Protection
E5	Compressor 1 overcurrent protection	C5	Compressor 3 overcurrent protection
b1	Compressor 2 high pressure protection	C6	Condenser 3 sensor malfunction
b2	System 2 anti freezing protection	C7	Evaporator 3 sensor malfunction
b3	Compressor 2 low pressure protection	FO	Indoor environment sensor malfunction
b4	Compressor 2 Exhaust High Temperature Protection	F1	Evaporator 1 sensor malfunction
b5	Compressor 2 overcurrent protection	F2	Condenser 1 sensor malfunction
b6	Condenser 2 sensor malfunction	F3	Outdoor environment sensor malfunction
b7	Evaporator 2 sensor malfunction	F5	Exhaust temperature sensor 1 malfunction
EC	communication failure	F6	Exhaust temperature sensor 2 malfunction
EE	Storage chip malfunction	F7	Exhaust temperature sensor 2 malfunction
E0	Water flow switch malfunction	F9	Supply fan thermal overcurrent
E8	Supply fan thermal overcurrent

 7. Constant temperature and humidity machine

Fault code	Fault content	Fault code	Fault content
E1	Compressor 1 high pressure protection	b5	Compressor 2 overcurrent protection
E2	Compressor 1 anti freezing protection	F0	Return air temperature sensor malfunction
E3	Compressor 1 low pressure protection	F1	Antifreeze sensor 1 protection
E5	Compressor 1 overcurrent protection	F2	Antifreeze sensor 2 protection
bl	Compressor 2 high pressure protection	F4	Exhaust sensor 1 protection
b2	Compressor 2 anti freezing protection	F5	Exhaust sensor 2 protection
b3	Compressor 2 low pressure protection	F8	Humidifier malfunction protection
b4	Compressor 2 Exhaust High Temperature Protection	F9	Centrifugal fan overcurrent protection

8. Water ring heat pump unit

Fault code	Fault content	Fault code	Fault content
E1	Compressor high pressure protection	E9	Full water protection
E2	System antifreeze protection	EC	Water temperature exceeding the limit fault
E3	Compressor low pressure protection	d1	UV malfunction
E4	Compressor exhaust high temperature protection	d2	Electrostatic dust removal malfunction
E5	Compressor overcurrent protection	FO	Indoor temperature sensor malfunction
E6	Communication Failure	F1	Evaporator temperature sensor malfunction
E7	Water flow switch protection	F3	Water system antifreeze sensor malfunction (B-series unit displays water temperature over limit protection)
E8	Indoor fan overcurrent protection	F4	Exhaust temperature sensor malfunction

9. Hot water air conditioning unit

Fault code	Fault content	Fault code	Fault content
F3	Outdoor environment temperature sensor malfunction	L6	Insufficient crew capacity
F4	Exhaust temperature sensor malfunction	L7	Water pressure switch protection
F5	Outdoor inlet temperature sensor malfunction	C8	Fault in the temperature sensor at the bottom of the water tank
F6	Outdoor central temperature sensor malfunction	1	VERSION
F6	Outdoor heat exchanger tube temperature sensing bulb malfunction	2	Outlet water temperature
F7	Outdoor outlet temperature sensor malfunction	3	Inlet water temperature
F8	Inlet water temperature sensor malfunction	4	Outdoor ambient temperature
F9	Water outlet temperature sensor malfunction	5	User side temperature
Fd	Return air temperature sensor malfunction	6	Outdoor inlet pipe temperature 1
FE	User side water temperature sensor malfunction	7	Outdoor inlet pipe temperature 2*
FL	Temperature sensor malfunction in the middle of the water tank	8	Exhaust temperature 1
E1	Compressor high pressure protection	9	Exhaust temperature 2*
E3	Compressor low pressure protection	10	Outdoor outlet temperature 1
E4	Compressor exhaust high temperature protection	11	Outdoor outlet temperature 2*
E6	Communication Failure	12	Water tank temperature (commercial machine)
E0	Pump overcurrent protection		Reserved (for home use)
EF	External fan overcurrent protection	13	reserve
EH	Auxiliary electric heating protection	14	reserve
Ed	System anti high temperature protection	15	reserve
Ec	Water flow switch protection	16	Reserved (commercial aircraft)
L2	Water tank level switch malfunction		Water tank temperature (household unit)
d2	Automatic antifreeze protection in winter	17	reserve
L5	Circulating water temperature sensor malfunction (RSZ series direct heating water heater)	18	Water temperature in the middle of the water tank
	Water tank temperature sensor malfunction (commercial direct circulation water heater)	19	Upper water temperature of the water tank

Fault code	Fault content	Fault code	Fault content
F0	Indoor temperature sensor malfunction	E5	Compressor overcurrent protection
F1	Evaporator temperature sensor malfunction	E6	Communication Failure
F2	Condenser temperature sensor malfunction	LI	power-off protection
F3	Outdoor temperature sensor malfunction	L2	Low voltage protection of battery
F4	Exhaust temperature sensor malfunction	L3	DC fan malfunction
F5	Water outlet temperature sensor/humidity sensor	EH	Auxiliary electric heating protection
E1	Compressor high pressure protection	LH	Alarm for high indoor ambient temperature
E2	Indoor antifreeze protection	LL	Alarm for low indoor ambient temperature
E3	Compressor low pressure protection	EL	Fire Alarm
E4	Compressor exhaust high temperature protection	L4	Filter blockage alarm

終了！