Gree AC Error Codes – Causes and Solutions (Get Full List)

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Gree Air Conditioners Error Code

Gree is one of the largest Chinese appliance manufacturers that offers its appliances all over the world. With headquarters in Zhuhai, Guangdong – it is said to be the latest residential air conditioner manufacturer. Offering a wide range of selections to choose from, the company aims to offer something for every space in your home. Producing more than air conditioners the company aims to offer all small and large household appliances one might need on a daily basis.

Established in 1989, the company was revamped and named Gree Electric Appliances Inc. of Zhuhai in 1994. However, it operates with the name Gree worldwide. Despite being one of the best, there are times when their air conditioners show error codes. To help you out we have listed down some of the most common error codes for Gree Air conditioners.

Using their quick and easy fixes you can now get around the error codes without calling in a professional. Allowing you the ability to handle the situation without anyone’s help. The best way to deal with the situation is to note down the error code and match it using the list below. Once you have the error code you can easily work your way to the fix.

Split Type

Error CodesMeaning
E1Refrigerant system high pressure protection. During cooling and drying operation, except indoor fan operates, all loads stop operation. During heating operation, the complete unit stops.
E2Anti-freezing protection. During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates.
E3Low pressure protection of compressor. The complete unit stops.
E4Compressor exhaust high temperature protection. During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop. Please refer to the malfunction analysis (discharge protection, overload).
E5AC over-current protection. During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop.
E6Communication failure between indoor unit and outdoor unit. During cooling operation, compressor stops while indoor fan motor operates. During heating operation, the complete unit stops. Refer to the corresponding malfunction analysis.
E8Anti-high temperature protection. During cooling operation: compressor will stop while indoor fan will operate. During heating operation, the complete unit stops. Refer to the malfunction analysis (overload, high temperature resistant).
F0Refrigerant Leakage Protection
F1Indoor ambient sensor open or short circuit
F2Indoor tube sensor open or short circuit
F3Outdoor ambient sensor open or short circuit. The unit will stop operation as it reaches the temperature point. During cooling and drying operation, compressor stops and indoor fan operates; During heating operation, the complete unit stops operation.
F4Outdoor tube sensor open or short circuit. During cooling and drying operation, compressor stops while indoor fan will operate; During heating operation, the complete unit will stop operation. Outdoor temperature sensor hasn’t been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor).
F5Exhaust sensor open or short circuit. Outdoor discharge temperature sensor is open/short circuited. During cooling and drying operation, compressor will sop after operating for about 3 mins, while indoor fan will operate; During heating operation, the complete unit will stop after operating for about 3 mins.
F6Over load limit / drop frequency. All loads operate normally, while operation frequency for compressor is decreased. Refer to the malfunction analysis (overload, high temperature resistant).
F8Over current limit / drop frequency. All loads operate normally, while operation frequency for compressor is decreased. The input supply voltage is too low; System pressure is too high and overload.
F9High exhaust temperature limit / drop frequency. All loads operate normally, while operation frequency for compressor is decreased.
PHVoltage for DC bus-bar is too high. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
P5Over compressor phase current protection. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation. Refer to the malfunction analysis (IPM protection, loss of synchronism protection and overcurrent protection of phase current for compressor.
b5Inlet tube sensor malfunction
L3Outdoor DC fan motor malfunction
b7Outlet tube sensor malfunction
FCDoor malfunction
FECompressor overload sensor malfunction
C5Jumper cap malfunction protection. Operation of remote controller or control panel is available, but the unit won’t act. There’s no jumper cap on the controller. Jumper cap is not inserted properly and tightly. Jumper cap is damaged. Controller is damaged.
H1Defrosting. Defrosting will occur in heating mode. Compressor will operate while indoor fan will stop operation. It’s the normal state.
H2Static clearing dust protection
H3Compressor over load protection. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
H4System abnormal protection. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
H5IPM protection. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
H6No feedback of indoor fan motor. Indoor fan, outdoor fan, compressor and electric heat tube stop operation. 2 minutes later, 4-way valve stops; horizontal louver stops at the current position.
H7Compressor loss step protection. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
HCPFC protection. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
H0Heating anti-high temperature drop frequency. All loads operate normally, while operation frequency for compressor is decreased.
LcStartup failure. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
U2Compressor protection against loss of phase
HECompressor demagnetization protection
EELoading EEPROM malfunction. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop. Replace outdoor control panel AP1.
P6Communication failure between main board and driver board
P7IPM sensor circuit malfunction. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop. refer to the part three charging malfunction analysis of capacitor. Replace outdoor control panel AP1.
P8IPM high temperature protection. During cooling operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop. After the complete unit is de-energized for 20mins, check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it’s no use, please replace control panel AP1.
PUCapacitor charge malfunction. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop. Refer to the part three charging malfunction analysis of capacitor.
PLVoltage of DC bus-bar is too low. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop.
PcCurrent detect circuit malfunction or Current sensor malfunction
LdCompressor loss of phase protection
LECompressor locked rotary protection
EUimit/decrease frequency due to high temperature of module. All loads operate normally, while operation frequency for compressor is decreased. Discharging after the complete unit is de-energized for 20mins, check whether the thermal grease on IPM Module of outdoor control panel AP1 is sufficient and whether the radiator is inserted tightly. If it’s no use, please replace control panel AP1.
U1Compressor phase current detection circuit malfunction. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop. Replace outdoor control panel AP1.
U3PN voltage drop protection. During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop. Supply voltage is unstable.
U4Compressor reverse protection
U5AC current detect circuit malfunction. During cooling and drying operation, the compressor will stop while indoor fan will operate; During heating operating, the complete unit will stop operation. There’s circuit malfunction on outdoor unit’s control panel AP1, please replace the outdoor unit’s control panel AP1.
U7The four-way valve is abnormal. If this malfunction occurs during heating operation, the complete unit will stop operation.
U8Disconnection of the exhaust temperature sensor
U9Zero- crossing malfunction of outdoor unit. During cooling operation, compressor will stop while indoor fan will operate; during heating, the complete unit will stop operation. Replace outdoor control panel AP1.
FAOver tube temperature drop frequency
FHAnti-freezing limit / drop frequency. All loads operate normally, while operation frequency for compressor is decreased. Poor air-return in indoor unit or fan speed is too low.
oEPFC module temperature protection/PFC module sensor malfunction

Cassette Type

Gree Cassette AC Error Codes
Gree Cassette AC Error Codes

In case of malfunction (such as bad smell), turn off the power immediately and contact the  service center. Do not repair the air conditioner by yourself. Incorrect repairs may cause fire. Please contact the service center. The appliance should not be used by children without supervision.

Once a failure occurs with the indoor unit in operation, the green unit LED flashes at intervals of 0.5 seconds.
The fault code is deduced from the number of times the green LED flashes, blocking unit operation. Between one flash cycle and the next one, a pause of 5 seconds elapses.

Error CodesSolution
E1High Pressure Protection. If outdoor unit detects the high pressure switch iscut off for 3-sec successively, high pressure protection will occur.All the loads (except the 4-way valve in heating mode) will be switched off. In thiscase, all the buttons and remote control signals except ON/OFF button will be disabled and system won't be recovered automatically. Switch off the unit or re-energize the unit after cutting off power to eliminate this protection.
E2Indoor Coil Freeze Protection. If indoor unit detects the evaporator temperature is lower than protective temperate value after the unit has been running for a period of time undercooling or dry mode, the unit will report this fault, in which case the compressor and outdoor fan motor will be stopped. The unit will not run until evaporator temperature is higher than the protective temp. value and the compressor is stopped for 3-min.
E4Compressor High Discharge Temperature Protection. f outdoor unit detects the discharge temperature is higher than protective temperature value, the unit will report high discharge temperature protection. If the protection occurs over 6 times, the unitcannot be recovered automatically. Switch off the unit or re-energize the unit aftercutting off power to reset this protection.
E6Communication Malfunction. If the outdoor unit does not receive data from indoor unit, communication malfunction will be reported. If there is communication abnormality between display board and indoor unit,communication malfunction will be reported.
E8Low Indoor Airflow. If the indoor unit does not receive signal from indoor fan motor for 30-secsuccessively when the fan motor is operating, indoor fan motor malfunction will be reported. In thiscase, the unitcan automatically resume operation after stopping. If the malfunction occurs 6 times within one hour, the unitcannot be recovered automatically. Switch off the unit or re-energize the unit after cutting off power to eliminate this malfunction.
E9Condensate Overflow Protection. If indoor unit detects the condensate overflow switch warning for 8-secsuccessively, the system will entercondensate overflow protection.The unit will shut off and will not recover automatically. Switch unit off and then switch it on to eliminate this malfunction.
F0Indoor Ambient Temperature Sensor at ReturnAir Inlet Malfunction. If indoor unit detects the indoor ambient temperature sensor is open circuit or shortcircuit for 5-secsuccessively, indoor ambient temp. sensor malfunction will be reported.The unitcan automatically resume operation after the malfunction disappears. If indoor ambient temperature sensor malfunction occurs in fan mode, only the error code is displayed and the indoor unit will operate normally.
F1Indoor Evaporator Coil Temperature Sensor Malfunction. If indoor unit detects the evaporator temperature sensor is open circuit or shortcircuit for 5-secsuccessively, evaporator temperature sensor malfunction will be reported.The unitcan automatically resume operation after the malfunction disappears. If evaporator temperature sensor malfunction occurs in fan mode, only the error code is displayed and the indoor unit will operate normally.
F2Indoor Condenser Coil Temperature Sensor Malfunction. If outdoor unit detects the condensercoil temperature sensor open circuit or shortcircuit for 5-secsuccessively,condensercoil temperature sensor malfunction will be reported.The unitcan automatically resume operation after the malfunction disappears. Ifcondenser temperature sensor malfunction occurs in fan mode, only the error code is displayed and the indoor unit will operate normally.
F3Outdoor Ambient Temperature Sensor Malfunction. If outdoor unit detects the outdoor ambient temperature sensor open circuit or shortcircuit for 5-secsuccessively, outdoor ambient temperature sensor malfunction will be reported.The unitcan automatically resume operation after the malfunction disappears. If outdoor ambient temperature sensor malfunction occurs in fan mode, only the errorcode is displayed and the indoor unit will operate normally.
F4Compressor Discharge Temperature Sensor Malfunction. If outdoor unit detects the compressor discharge temperature sensor is open circuit or shortcircuit for 5-secsuccessively after the compressor has been operating for 3-min, outdoor discharge temperature sensor malfunction will be reported.The unitcan automatically resume operation after the malfunction disappears.
F5Wired Controller Temp. Sensor Malfunction. If the wired Tether Controller detects open circuit or shortcircuit of its temperature sensor for 5-secsuccessively,wired controller temperature sensor malfunction will be reported.
H1Defrost Mode. System is defrosting outdoorcoil.
H3Compressor Overload Protection. If outdoor unit detects the compressor overload switch open within 3-sec successively, the unit will reportcompressor overload protection. If the fault occurs successively 3 times, the unit will not recover automatically. Switch off the unit or re-energize the unit to eliminate this protection.
H4Overload Protection. If indoor unit detects the evaporatorcoil temperature is higher than protective temp. value, the unit will report overload protection. The unit will restart operation after evaporator temperature is lower than the protective temp. value and the compressor is stopped for 3-minutes. If the protection occurs over 6 times, the unit will not recover automatically. Switch off the unit or re-energize the unit to eliminate this protection.
H6Outdoor Fan Motor Malfunction. If outdoor unit does not receive feedback signal from outdoor fan motor for 30-secsuccessively when the fan motor is operating, an outdoor fan motor malfunction will be reported. In thiscase, the unit can automatically resume operation after stopping. If the malfunction occurs 6 times within one hour, the unit will not recover automatically. Switch off the unit or re-energize the unit to eliminate this malfunction.
U7Reversing or 4-wayValve Malfunction. After the compressor starts operation in heating mode, if the outdoor unit detects the difference between evaporator temperature and indoor ambient temperature is lower than the protective value for 10-min successively, ReversingValve Malfunction will be reported and the outdoor unit will stop operation. If the malfunction occurs 3 times, the unit will not recover automatically. Switch off the unit or re-energize the unit to eliminate this malfunction.
Gree Cassette Type Air Conditioner Error Codes
Gree Cassette Type Air Conditioner Error Codes

Cozy Series Inverter

Gree Cozy AC Error Codes
Gree Cozy AC Error Codes
Fault CodesSolutions
E1High pressure protection of system
E2Antifreezing protection
F0In defect of refrigerant
E4High discharge temperature protection of compressor
E5Overcurrent protection
E6Communication Malfunction
E8High temperature resistant protection
EEEEPROM malfunction
EULimit/ decrease frequency due to high temperature of module
C5Malfunction protection of jumper cap
FoGathering refrigerant-Nominal cooling mode
F1Indoor ambient temperature sensor is open/short circuited
F2Indoor evaporator temperature sensor is open/short circuited
F3Outdoor ambient temperature sensor is open/short circuited
F4Outdoor condenser temperature sensor is open/short circuited
F5Outdoor discharge temperature sensor is open/short circuited
F6Limit/ decrease frequency due to overload
F8Decrease frequency due to overcurrent
F9Decrease frequency due to high air discharge
FHLimit/ decrease frequency due to antifreezing
PHVoltage for DC bus-bar is too high
PLVoltage of DC bus-bar is too low
P0Compressor Min frequence in test state
P1Compressor rated frequence in test state
P2Compressor maximum frequence in test state
P3Compressor intermediate frequence in test state
P5Overcurrent protection of phase current for compressor
PUCharging malfunction of capacitor
P7Malfunction of module temperature sensor circuit
P8Module high temperature protection
H0Decrease frequency due to high temperature resistant during heating operation
H2Static dedusting protection
H3Overload protection for compressor
H4System is abnormal
H5IPM protection
H5Module temperature is too high
H6Internal motor (fan motor) do not operate
H7Desynchronizing of compressor
HCPFC protection
L3Outdoor DC fan motor malfunction
L9Power protection
LPIndoor unit and outdoor unit doesn't match
LCFailure startup
U1Malfunction of phase current detection circuit for compressor
U3Malfunction of voltage dropping for DC bus-bar
U5Malfunction of complete units current detection
U7The four-way valve is abnormal
U9Zerocrossing malfunction of outdoor unit

Ductless Heat Pump

Error CodesPossible Causes
C5Indoor Configuration Jumper/Missing Configuration Jumper on Indoor Control Board
LPIndoor/Outdoor Mismatch/Indoor and Outdoor Units Do Not Match
E5High Current Protection/Power Supply is not Stable and Voltage Range is too Large
E6Communication Error/Mis-wired or Communication Failure
F1Indoor Air Temp. Thermistor/Bad Connection, or Indoor Air Sensor Failure
F2 Indoor Coil Temp. Thermistor/Bad Connection, or Indoor Coil Sensor Failure
F3Outdoor Air Temp. Thermistor/Bad Connection, or Outdoor Ambient Sensor Failure
F4Outdoor Coil Temp. Thermistor/Bad Connection, or Outdoor Coil Sensor Failure
F5Compressor Discharge Temp. Thermistor/Bad Connection, or Discharge Sensor Failure
H3Compressor Overload Protection/Low Refrigerant Charge
H5IPM Module Protection/IPM Module Temperature Too High
H6Indoor Fan Malfunction/Indoor Fan Stopped or Running too Slow
H7Compressor Synchronism/High Pressure, Low Voltage, or Bad Connections
U74-Way Valve Malfunction/Bad Connection, Solenoid Failure, or Valve Malfunction.
Models: GWH09KF-A3DNB1A / GWH12KF-A3DNB1A/ GWH09KF-D3DNB1C/ GWH12KF-D3DNB1C/ GWH18KG-D3DNB1C/ GWH24KG-D3DNB1A
Gree Ductless Heat Pump Error Codes

Portable AC

In some cases, problems can be solved easily without the help from the Customer Service department just by checking the following.

Gree Portable Air Conditioner Error Codes
Gree Portable Air Conditioner Error Codes

If the problem still persists after you check the following, then contact the Customer Service department.

CodesCause
H8Chassis is full of water. Pour out the water inside chassis.
F1Malfunction of temperature sensor.
F2Malfunction of evaporator temperature sensor.
F0Refrigerant is leaking. System is blocked. Turn unit off, pull out power plug. Wait 30 minutes. Plug unit in and turn on. If code still appears, please contact Customer Service.
H3Overload protection for compressor-Overload malfunction. Check if the unit is within hightemperature, high-humidity environment. If outside temperature or humidity is too high, turn off unit. Wait until outside temperature drops to under 95˚F (35˚C). Check if the evaporator and condenser are blocked. If yes, remove objects. Turn unit off. Wait 30 minutes.
E8Overload malfunction. Check if the unit is within hightemperature, high-humidity environment. If outside temperature or humidity is too high, turn off unit. Wait until outside temperature drops to under 95˚F (35˚C). Check if the evaporator and condenser are blocked. If yes, remove objects. Turn unit off. Wait 30 minutes.
F4Outdoor tube temperature sensor is open/short-circuited.
E5Overcurrent protection. Turn unit off, pull out power plug. Wait10 minutes. Plug unit in and turn on.

Remote Control

Gree AC Remote Control
Gree AC Remote Control

Diagram

Gree AC Refrigerant System Diagram
Gree AC Refrigerant System Diagram

Manuals PDF

Split Air Conditioner Manual

Livo Split Air Conditioner Manual

Gree AC Installation and Service Manual

Ductless Inverter Heat Pump AC Manual

Multi VRF Air Conditioner Manual PDF

Cassette Type Aircon Error Codes

Inverter AC Owner Manual GWH-K3DN

Owner Manual – Operation Instructions for Split Versati

Inverter AC Console Type – Owner Manual GEH09AA-K6DNA1E PDF

DC Inverter U-match Series Floor Ceiling Type Unit GTH09K3FI – GUHD09NK3FO

Service Manual GWH09QB-K3DNA6D (WIFI)

Commercial Air Conditioners Owners Manual – GMV DC Inverter VRF Models GMV-785W

Inverter AC Console Type – Owner Manual

References

greecomfort.com

gree-america.com/hvac america/resource/

greecomfort.com/assets/documents/archive/livo-revision-a/owner-s-manual.pdf

Danny Reese
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210 thoughts on “Gree AC Error Codes – Causes and Solutions (Get Full List)”

    • Hello,
      I am getting an error messsage dd on the mcquay split unit.. Can you help me to get an answer for this code… Please email me the answer and steps to take to correct that error…

      Reply

    • E6 is an communication error, check that all of the wires are connected correctly and that none have come loose or broken.
      On the outdoor unit there are three LED’s, if any of these LED’s are on then the IC has failed so you need to change the main outdoor PCB.
      If the green LED blinks once every second then comms is ok.
      If the red LED is blinking check the voltage between terminal 2 and the neutral. The voltage should swing between zero and 20 VAC, if it does, the indoor has sent a signal and this has not been received by the outdoor, replace the outdoor PCB. If the voltage does not change, then no signal has been sent, check the interconnecting wiring and check for loose connections before replacing the indoor PCB

      Reply

  3. ı have gree aırcondıtıon , model code (gwh12mb-k3dna3a/ı) showıng an error code of (h5), and from the lıst above says that the error code corespond to (ıpm current protectıon) what does ıt means ? and please some to tıp to repaır ıt .
    thanks ın advance
    joseph

    Reply

    • H5 is an over heat / over current protection. With the power off check all the connections down the the compressor, while there check the compressor winding (0.5 ohms ~ 2 ohms and to earth >500 M ohms)
      Check on the main outdoor PCB for a short between P and N and P or N to U V W, using a diode checker, check between P and U V W and then between U V W and N, these should be the same (0.3 V ~ 0.7 V) If any of these are shorted or are different to the rest then the outdoor PCB needs to be changed.
      This fault could also occur if the unit was placed under a larger load, but once turned off and allowed to cool down should restart.

      Reply

  4. What is the solution for e6 error in gree ac ?
    i am stuck …. plzzz reply me how to set up communication between indoor and outdoor again and overcome the error

    Reply

    • communication error, exterior pcb failure, or it’s the voltage filter who died or wired burned, so the pcb doesnt receive 240volt, maybe just 120.

      Reply

      • where is the voltage filter located on outside unit, on gree neo 36 I have an e6 error code, replaced both inside and outside boards, and i still get an immediate e6 code when turning on unit!!!

        Reply

  5. I have spilet 42000gree.when want comperssor start disply on lcd error e1 and no work spilet.howe I can fixed these error

    Reply

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