Gree Air Conditioner Error Codes Your Gree mini split air conditioner uses error codes to inform you of what issue or problem is currently preventing your unit from operating correctly. Understanding what the error code means is the first step for troubleshooting the problem and getting your system operational again. The fault code is deduced from the number of times the green LED flashes, blocking unit operation.
Gree Air Conditioner Error Code Solutions
E1: Refrigerant system high pressure protection
E2: Anti-freezing protection
E4: Compressor exhaust high temperature protection
E5: AC over-current protection
E6: Communication failure between indoor unit and outdoor unit
E8: Anti-high temperature protection
H6: No feedback of indoor fan motor
C5: Jumper cap malfunction protection
F0: Refrigerant Leakage Protection
F1: Indoor ambient sensor open or short circuit
F2: Indoor tube sensor open or short circuit
F3: Outdoor ambient sensor open or short circuit
F4: Outdoor tube sensor open or short circuit
F5: Exhaust sensor open or short circuit
F6: Over load limit / drop frequency
F8: Over current limit / drop frequency
F9: High exhaust temperature limit / drop frequency
PH: Over voltage protection for PN
U5: AC current detect circuit malfunction
U4: Compressor reverse protection
P5: Over compressor phase current protection
b5: Inlet tube sensor malfunction
L3: Outdoor DC fan motor malfunction
b7: Outlet tube sensor malfunction
FC: Door malfunction
FE: Compressor overload sensor malfunction
H1: Defrosting
H2: Static clearing dust protection
H3: Compressor over load protection
H4: System abnormal protection
H5: IPM protection
HC: PFC protection
H7: Compressor loss step protection
H0: Heating anti-high temperature drop frequency
Lc: Startup failure
U2: Compressor protection against loss of phase
U1: Compressor phase current detection circuit malfunction
HE: Compressor demagnetization protection
EE: Loading EEPROM malfunction
P6: Communication failure between main board and driver board
PU: Capacitor charge malfunction
P7: IPM sensor circuit malfunction
P8: IPM high temperature protection
U3: PN voltage drop protection
PL: Low PN voltage protection
Pc: Current detect circuit malfunction or Current sensor malfunction
Ld: Compressor loss of phase protection
LE: Compressor locked rotary protection
EU: IPM over temperature limit / drop frequency
U7: 4-way valve reversal abnormal
U8: Disconnection of the exhaust temperature sensor
U9: AC power zero voltage detect error
FA: Over tube temperature drop frequency
FH: Anti-freezing limit / drop frequency
oE: PFC module temperature protection/PFC module sensor malfunction
C5: Malfunction of connector jumper: Check if the connector jumper contacts properly. If the PCB is to be replaced, please take off the old for the new PCB
F1: Malfunction of indoor ambient temperature sensor:Check if indoor room temperature sensor is connected properly.
F2: Malfunction of evaporator temperature sensor:Check if the evaporator temperature is connected properly.
H1: Defrosting:It is normal
H6: Indoor fan block:Check if terminal of the indoor motor is connected properly. Replace the fan motor or the indoor board if disabled.
- The wiring terminal between indoor evaporator temperature sensor and controller is loosened or poorly contacted;
- There’s short circuit due to the trip-over of the parts on controller;
- Indoor evaporator temperature sensor is damaged
- Main board is broken.
Gree AC Error Code: F3
Malfunction Name: Outdoor ambient temperature sensor is open/ short-circuited
A/C Status: 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.
Possible Causes:
- The wiring terminal between outdoor ambient temperature sensor and controller is loosened or poorly contacted;
- There’s short circuit due to the trip-over of the parts on controller;
- Outdoor ambient temperature sensor is damaged
- Main board is broken.
Gree AC Error Code: H6
Malfunction Name: PG motor (indoor fan motor) does not operate
A/C Status: 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.
Possible Causes:
- The feedback terminal of PG motor is not connected tightly.
- The control terminal of PG motor is not connected tightly.
- Fan blade rotates roughly due to improper installation.
- Motor is not installed properly and tightly.
- Motor is damaged.
- Controller is damaged
Gree AC Error Code: C5
Malfunction Name: Malfunction protection of jumper cap
A/C Status: Operation of remote controller or control panel is available, but the unit won’t act
Possible Causes: There’s no jumper cap on the controller. Jumper cap is not inserted properly and tightly. Jumper cap is damaged. Controller is damaged.
Gree AC Error Code: U8
Malfunction Name: PG motor (indoor fan) circuit malfunction by zero cross detection
A/C Status: Operation of remote controller or control panel is available, but the unit won’t act
Possible Causes: Controller is damaged.
Gree AC Error Code: E2
Malfunction Name: Antifreezing protection
A/C Status: During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates.
Possible Causes:
- Poor air-return in indoor unit;
- Abnormal fan speed;
- Dirty evaporator;
- System is normal but the indoor tube temperature sensor is abnormal, or the tube temperature sensor is not connected well.
Gree AC Error Code: E3
Malfunction Name: Low pressure protection of compressor
A/C Status: The complete unit stops
Possible Causes:
- The main board and display panel are not connected well.
- The LPP terminal on the main board is not connected well, with the high pressure switch on the complete unit.
- The wiring of the high pressure switch is loosened. High pressure switch is damaged or poorly contacted.
- Insufficient or leaking out refrigerant.
- The LPP input is at high level.
Gree AC Error Code: E1
Malfunction Name: High pressure protection of system
A/C Status: During cooling and drying operation, except indoor fan operates, all loads stop operation. During heating operation, the complete unit stops
Possible Causes:
- Refrigerant was superabundant;
- Poor heat exchange (including filth blockage of heat exchanger and bad radiating environment ); Ambient temperature is too high.
Gree AC Error Code: E4
Malfunction Name: High discharge temperature protection of compressor
A/C Status: During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop
Possible Causes: Please refer to the malfunction analysis (discharge protection, overload).
Gree AC Error Code: E5
Malfunction Name: Overcurrent protection
A/C Status: During cooling and drying operation, compressor and outdoor fan stop while indoor fan operates. During heating operation, all loads stop
Possible Causes:
- Supply voltage is unstable;
- Supply voltage is too low and load is too high;
- Evaporator is dirty.
Gree AC Error Code: E6
Malfunction Name: Communication Malfunction
A/C Status: During cooling operation, compressor stops while indoor fan motor operates. During heating operation, the complete unit stops
Possible Causes: Refer to the corresponding malfunction analysis
Gree AC Error Code: E8
Malfunction Name: High temperature resistant protection
A/C Status: During cooling operation: compressor will stop while indoor fan will operate. During heating operation, the complete unit stops
Possible Causes: Refer to the malfunction analysis (overload, high temperature resistant)
Gree AC Error Code: F4
Malfunction Name: Outdoor condenser temperature sensor is open/short circuited
A/C Status: During cooling and drying operation, compressor stops while indoor fan will operate; During heating operation, the complete unit will stop operation.
Possible Causes: Outdoor temperature sensor hasn’t been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor)
Gree AC Error Code: F5
Malfunction Name: Outdoor discharge temperature sensor is open/short circuited
A/C Status: 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
Possible Causes:
- Outdoor temperature sensor hasn’t been connected well or is damaged. Please check it by referring to the resistance table for temperature sensor)
- 2.The head of temperature sensor hasn’t been inserted into the copper tube
Gree AC Error Code: F6
Malfunction Name: Limit/decrease frequency due to overload
A/C Status: All loads operate normally, while operation frequency for compressor is decreased
Possible Causes: Refer to the malfunction analysis (overload, high temperature resistant)
Gree AC Error Code: F8
Malfunction Name: Decrease frequency due to overcurrent
A/C Status: All loads operate normally, while operation frequency for compressor is decreased
Possible Causes: The input supply voltage is too low; System pressure is too high and overload
Gree AC Error Code: F9
Malfunction Name: Decrease frequency due to high air discharge
A/C Status: All loads operate normally, while operation frequency for compressor is decreased
Possible Causes:
- Overload or temperature is too high;
- Refrigerant is insufficient;
- Malfunction of electric expansion valve (EKV)
Gree AC Error Code: PH
Malfunction Name: Voltage for DC bus-bar is too high
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
Possible Causes:
- Measure the voltage of position L and N on wiring board (XT), if the voltage is higher than 265VAC, turn on the unit after the supply voltage is increased to the normal range.
- If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if it’s normal, there’s malfunction for the circuit, please replace the control panel (AP1)
Gree AC Error Code: U5
Malfunction Name: Malfunction of complete unit’s current detection
A/C Status: During cooling and drying operation, the compressor will stop while indoor fan will operate; During heating operating, the complete unit will stop operation.
Possible Causes: There’s circuit malfunction on outdoor unit’s control panel AP1, please replace the outdoor unit’s control panel AP1.
Gree AC Error Code: P5
Malfunction Name: Overcurrent protection of phase current for compressor
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation
Possible Causes: Refer to the malfunction analysis (IPM protection, loss of synchronism protection and overcurrent protection of phase current for compressor.
Gree AC Error Code: H1
Malfunction Name: Defrosting
A/C Status: Defrosting will occur in heating mode. Compressor will operate while indoor fan will stop operation.
Possible Causes: It’s the normal state
Gree AC Error Code: H2
Malfunction Name: Static dedusting protection
Gree AC Error Code: H3
Malfunction Name: Overload protection for compressor
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation
Possible Causes:
- Wiring terminal OVC-COMP is loosened. In normal state, the resistance for this terminal should be less than 1 ohm.
- Refer to the malfunction analysis ( discharge protection, overload)
Gree AC Error Code: H4
Malfunction Name: System is abnormal
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
Possible Causes: Refer to the malfunction analysis (overload, high temperature resistant)
Gree AC Error Code: H5
Malfunction Name: IPM protection
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
Possible Causes: Refer to the malfunction analysis (IPM protection, loss of synchronism protection and overcurrent protection of phase current for compressor.
Gree AC Error Code: HC
Malfunction Name: PFC protection
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
Possible Causes: Refer to the malfunction analysis
Gree AC Error Code: H7
Malfunction Name: Desynchronizing of compressor
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation.
Possible Causes: Refer to the malfunction analysis (IPM protection, loss of synchronism protection and overcurrent protection of phase current for compressor.
Gree AC Error Code: H0
Malfunction Name: Decrease frequency due to high temperature resistant during heating operation
A/C Status: All loads operate normally, while operation frequency for compressor is decreased
Possible Causes: Refer to the malfunction analysis (overload, high temperature resistant)
Gree AC Error Code: Lc
Malfunction Name: Failure start-up
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop operation
Possible Causes: Refer to the malfunction analysis
Gree AC Error Code: U1
Malfunction Name: Malfunction of phase current detection circuit for compressor
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop
Possible Causes: Replace outdoor control panel AP1
Gree AC Error Code: EE
Malfunction Name: EEPROM malfunction
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop
Possible Causes: Replace outdoor control panel AP1
Gree AC Error Code: PU
Malfunction Name: Charging malfunction of capacitor
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop
Possible Causes: Refer to the part three—charging malfunction analysis of capacitor
Gree AC Error Code: P7
Malfunction Name: Malfunction of module temperature sensor circuit
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop
Possible Causes: Replace outdoor control panel AP1
Gree AC Error Code: P8
Malfunction Name: Module high temperature protection
A/C Status: During cooling operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop
Possible Causes: 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.
Gree AC Error Code: U3
Malfunction Name: Malfunction of voltage dropping for DC bus-bar
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop
Possible Causes: Supply voltage is unstable
Gree AC Error Code: PL
Malfunction Name: Voltage of DC bus-bar is too low
A/C Status: During cooling and drying operation, compressor will stop while indoor fan will operate; During heating operation, the complete unit will stop
Possible Causes:
- Measure the voltage of position L and N on wiring board (XT), if the voltage is higher than 150VAC, turn on the unit after the supply voltage is increased to the normal range.
- If the AC input is normal, measure the voltage of electrolytic capacitor C on control panel (AP1), if it’s normal, there’s malfunction for the circuit, please replace the control panel (AP1)
Gree AC Error Code: EU
Malfunction Name: Limit/decrease frequency due to high temperature of module
A/C Status: All loads operate normally, while operation frequency for compressor is decreased
Possible Causes: 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.
Gree AC Error Code: U7
Malfunction Name: The four-way valve is abnormal
A/C Status: If this malfunction occurs during heating operation, the complete unit will stop operation
Possible Causes:
- Supply voltage is lower than AC175V;
- Wiring terminal 4V is loosened or broken;
- 4V is damaged, please replace 4V
Gree AC Error Code: U9
Malfunction Name: Zero- crossing malfunction of outdoor unit
A/C Status: During cooling operation, compressor will stop while indoor fan will operate; during heating, the complete unit will stop operation.
Possible Causes: Replace outdoor control panel AP1
Gree AC Error Code: FH
Malfunction Name: Limit/decrease frequency due to antifreezing
A/C Status: All loads operate normally, while operation frequency for compressor is decreased
Possible Causes: Poor air-return in indoor unit or fan speed is too low
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 Codes | Solution |
|---|---|
| E1 | High 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. |
| E2 | Indoor 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. |
| E4 | Compressor 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. |
| E6 | Communication 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. |
| E8 | Low 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. |
| E9 | Condensate 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. |
| F0 | Indoor 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. |
| F1 | Indoor 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. |
| F2 | Indoor 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. |
| F3 | Outdoor 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. |
| F4 | Compressor 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. |
| F5 | Wired 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. |
| H1 | Defrost Mode. System is defrosting outdoorcoil. |
| H3 | Compressor 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. |
| H4 | Overload 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. |
| H6 | Outdoor 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. |
| U7 | Reversing 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 Cozy AC Error Codes:
E1: High pressure protection of system
E2: Antifreezing protection
F0: In defect of refrigerant
E4: High discharge temperature protection of compressor
E5: Overcurrent protection
E6: Communication Malfunction
E8: High temperature resistant protection
EE: EEPROM malfunction
EU: Limit/ decrease frequency due to high temperature of module
C5: Malfunction protection of jumper cap
Fo: Gathering refrigerant-Nominal cooling mode
F1: Indoor ambient temperature sensor is open/short circuited
F2: Indoor evaporator temperature sensor is open/short circuited
F3: Outdoor ambient temperature sensor is open/short circuited
F4: Outdoor condenser temperature sensor is open/short circuited
F5: Outdoor discharge temperature sensor is open/short circuited
F6: Limit/ decrease frequency due to overload
F8: Decrease frequency due to overcurrent
F9: Decrease frequency due to high air discharge
FH: Limit/ decrease frequency due to antifreezing
PH: Voltage for DC bus-bar is too high
PL: Voltage of DC bus-bar is too low
P0: Compressor Min frequence in test state
P1: Compressor rated frequence in test state
P2: Compressor maximum frequence in test state
P3: Compressor intermediate frequence in test state
P5: Overcurrent protection of phase current for compressor
PU: Charging malfunction of capacitor
P7: Malfunction of module temperature sensor circuit
P8: Module high temperature protection
H0: Decrease frequency due to high temperature resistant during heating operation
H2: Static dedusting protection
H3: Overload protection for compressor
H4: System is abnormal
H5: IPM protection
H5: Module temperature is too high
H6: Internal motor (fan motor) do not operate
H7: Desynchronizing of compressor
HC: PFC protection
L3: Outdoor DC fan motor malfunction
L9: power protection
LP: Indoor unit and outdoor unit doesn’t match
LC: Failure startup
U1: Malfunction of phase current detection circuit for compressor
U3: Malfunction of voltage dropping for DC bus-bar
U5: Malfunction of complete units current detection
U7: The four-way valve is abnormal
U9: Zerocrossing malfunction of outdoor unit
Gree Ductless Heat Pump Error Codes
Models: GWH09KF-A3DNB1A / GWH12KF-A3DNB1A/ GWH09KF-D3DNB1C/ GWH12KF-D3DNB1C/ GWH18KG-D3DNB1C/ GWH24KG-D3DNB1A
| Error Codes | Possible Causes |
|---|---|
| C5 | Indoor Configuration Jumper/Missing Configuration Jumper on Indoor Control Board |
| LP | Indoor/Outdoor Mismatch/Indoor and Outdoor Units Do Not Match |
| E5 | High Current Protection/Power Supply is not Stable and Voltage Range is too Large |
| E6 | Communication Error/Mis-wired or Communication Failure |
| F1 | Indoor Air Temp. Thermistor/Bad Connection, or Indoor Air Sensor Failure |
| F2 | Indoor Coil Temp. Thermistor/Bad Connection, or Indoor Coil Sensor Failure |
| F3 | Outdoor Air Temp. Thermistor/Bad Connection, or Outdoor Ambient Sensor Failure |
| F4 | Outdoor Coil Temp. Thermistor/Bad Connection, or Outdoor Coil Sensor Failure |
| F5 | Compressor Discharge Temp. Thermistor/Bad Connection, or Discharge Sensor Failure |
| H3 | Compressor Overload Protection/Low Refrigerant Charge |
| H5 | IPM Module Protection/IPM Module Temperature Too High |
| H6 | Indoor Fan Malfunction/Indoor Fan Stopped or Running too Slow |
| H7 | Compressor Synchronism/High Pressure, Low Voltage, or Bad Connections |
| U7 | 4-Way Valve Malfunction/Bad Connection, Solenoid Failure, or Valve Malfunction. |
Gree Portable Air Conditioner Error Codes
In some cases, problems can be solved easily without the help from the Customer Service department just by checking the following.
If the problem still persists after you check the following, then contact the Customer Service department.
Error Code : H8
Problem: Chassis is full of water.
Solution:
1. Pour out the water inside chassis.
2. If “H8” still exists, please contact Customer Service.
Error Code : F1
Problem: Malfunction of temperature sensor.
Solution: Please contact Customer Service
Error Code : F2
Problem: Malfunction of evaporator temperature sensor.
Solution: Please contact Customer Service
Error Code : F0
Problem:
- Refrigerant is leaking
- System is blocked
Solution:
- Turn unit off, pull out power plug. Wait 30 minutes.
- Plug unit in and turn on.
- If code still appears, please contact Customer Service.
Error Code : H3
Problem: Overload protection for compressor-Overload malfunction
Solution:
- 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.
- If code still appears, please contact Customer Service.
Error Code : E8
Problem: Overload malfunction
Solution:
- 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.
- If code still appears, please contact Customer Service.
Error Code : F4
Problem: Outdoor tube temperature sensor is open/short-circuited.
Solution: Please contact Customer Service
Error Code : E5
Problem: Overcurrent protection
Solution:
- Turn unit off, pull out power plug. Wait10 minutes.
- Plug unit in and turn on.
- If code still appears, please contact Customer Service.
Gree Air Conditioner Troubleshooting
*Problem
Water leaking from the indoor unit into the room.
Cause/Solution
Cause: While it is normal for the system to generate condensate water in coolingmode, it is designed to drain this water via a condensate drain system to a safe location.
Solution: If water is leaking into the room, it may indicate one of the following
- The indoor unit is not level right to left. Level indoor unit.
- The condensate drain pipe is restricted or plugged.All restrictions must be removed to allow continuous drainage by gravity.
- If problem persists,contact a qualified service professional for assistance
*Problem
Wireless remote controller does not work.
Cause/Solution
Cause: There are a number of possible reasons
Solution: Check the following:
- The batteries might be low. Change the batteries.
- The remote controller must be within 25 ft. (7.5 m) with no obstructions of the indoor unit. If remote controller needs to be replaced,contact a qualified service professional for assistance. In the meantime, use the Aux Button to operate the system.
*Problem
The unit will not deliver air
Cause/Solution
Cause: There are a number of system functions that will prevent air flow.
Solution: Check for the following:
- In heating mode, the indoor fan may not start for three minutes if the room temperature is very low.This is to prevent blowing cold air.
- In heat mode, if the outdoor temperature is low and humidity is high, the system may need to defrost for up to 10 minutes before beginning a heating cycle.
- In dry mode, the indoor fan may stop for up to three minutes during the compressor off delay.
- Otherwise, you should contact a qualified service professional for assistance
*Problem
Moisture orcondensation on the discharge air louvers or outlet vents.
Cause/Solution
Cause: It is normal for the system to develop condensation or moisture on the discharge air louvers when cooling warm humid air for a long period of time.
Solution: The condensation or moisture will disappear as the system cools and dehumidifies the room space.
*Problem
System does not restart
Cause/Solution
Cause: The system has a built-in three-minute delay to prevent short and/or rapid cycling of the compressor.
Solution: Wait three minutes for the protection delay to expire.
*Problem
Indoor unit emits unpleasant odor when started
Cause/Solution
Cause: Typically unpleasant odors are the result of mold or mildew forming on the coil surfaces or the air filter.
Solution: Wash indoor air filter in warm water with mild cleaner. If odors persist, contact a qualified service professional to clean the coil surfaces.
*Problem
You hear a“water flowing”sound
Cause/Solution
Cause: It is normal for the system to make“water flowing”or“gurgling”sounds from refrigerant pressures equalizing when the compressor starts and stops.
Solution: The noises should discontinue as the refrigerant system equalizes after two or three minute.
*Problem
A thin fog or vapor coming out of the indoor unit when system is running
Cause/Solution
Cause: It is normal for the system to emit a slight fog or water vapor when cooling extremely humid warm air.
Solution: The fog or water vapor will disappear as the system cools and dehumidifies the room space
*Problem
The system will not run
Cause/Solution
Cause: There are a number of situations that will prevent the system from running.
Solution: Check for the following:
- Circuit breaker is “tripped” or “turned off.”
- Power button of remote is not turned on.
- Batteries in the remote controller are low.
- Remote controller is in sleep mode or timer mode.
- Otherwise,contact a qualified service professional for assistance
*Problem
Wireless remote controller does not work
Cause/Solution
Cause: There are a number of possible reasons
Solution: Check the following:
- The batteries might be low. Change the batteries.
- The remote controller must be within 25 ft. (7.5 m) with no obstructions of the indoor unit. If remote controller needs to be replaced,contact a qualified service professional for assistance. In the meantime, use the Aux Button to operate the system.
*Problem
Water leaking from the indoor unit into the room
Cause/Solution
Cause: While it is normal for the system to generate condensate water in cooling mode, it is designed to drain this water via a condensate drain system to a safe location.
Solution: If water is leaking into the room, it may indicate one of the following.
- The indoor unit is not level right to left. Level indoor unit.
- The condensate drain pipe is restricted or plugged.All restrictions must be removed to allow continuous drainage by gravity.
- If problem persists, contact a qualified service professional for assistance