Gree is one of the biggest if not the biggest company when it comes to manufacturing high-quality air conditioners. Their air conditioners work flawlessly for years without showing any breakage but minor issues can happen on any day. The good thing is that Gree AC displays an error code that indicates a specific issue in your unit.
All you need is to have some knowledge about what an error code indicates, what can be its causes, and how you can take it down. To make things easier for you, we have gathered all the Gree AC error codes along with the solutions. If you are unable to take down the error even after implementing the suggested solutions, it is better to call a professional technician or electrician instead of taking it as a DIY task and putting the unit at risk.
Gree Air Conditioner “E” Series Error Codes
Gree air conditioner error code E1
Causes:
This error occurs when AC is detecting high pressure which can happen when/if:
- The copper coils are dirty and covered with debris.
- AC fans are not working efficiently.
- AC was left on charge for a long time and now it’s overcharged.
- The high-pressure switch is defective.
Solutions:
- Check the coils for any dirt build-up. Wipe off the debris from the coil and do a thorough cleaning.
- Check the fan for anything stuck or too much dirt build-up. Clean the fan or replace it if faulty.
- If you are still getting errors, seek assistance from a technician to inspect the high-pressure switch of the AC. Repair or replace it as required.
Gree air conditioner error code E2
Causes:
This error occurs when the air conditioner is facing freezing or icing problems. This can happen when/if:
- Clogging in the cooling coils.
- Blockages in the condenser or blower.
- Clogged filter.
- Low level of refrigerant.
- The fan is faulty.
Solutions:
- Seek assistance from professional engineers to check the cooling coils, condenser, and blower to fix if something is causing a clog.
- Check the level of refrigerant on the AC. If it’s below the required amount, ask an engineer to fill it.
- Check the AC fan to ensure that it’s working fine and at full speed. Repair or replace the fan as needed.
Gree air conditioner error code E3
Causes:
- This error occurs when there’s low pressure in the AC mostly because of a restriction, leak, or clogging in the system.
- The air conditioner’s evaporator, fan, or filter is dirty.
Solutions:
- Check the outdoor unit by opening its cover for any dirt or debris build-up. You should do this more often if the outdoor unit is near a tree or sitting on the ground.
- Look through the AC system for any leaks or something causing a restriction.
- Immediately seek assistance from a technician to repair the leakages.
- If still getting errors, ask the technicians to check the AC system thoroughly as this could be an internal system issue.
Gree air conditioner error code E4
Causes:
- This error is reported by Gree AC when the compressor is emitting high temperature.
- The main PCB of the AC gets a warning from the system that the external unit is receiving a high level of temperature.
Solutions:
- Turn OFF the air conditioner and let it cool down for a few minutes. Turn it ON again and see if the error goes away.
- Check the air filters for any dirt or grease build-up. Clean them thoroughly.
- Clean the condenser, coils, and evaporator from any blockages.
- Check and make sure that enough and consistent voltages are being supplied to AC.
Contact Gree Customer Support or seek help from a professional technician if you are still getting the error.
Gree air conditioner error code E5
Causes:
This error occurs when the over-current protection feature or mode is activated in the air conditioner. This can happen when/if:
- Low supply voltages to the unit are not consistent.
- Line voltages to the AC are too high.
Solutions:
- Seek the assistance of a professional technician to ensure that enough voltages are being supplied, consistently.
- Check all the electrical lines going into the system for any breakages. Repair or replace the wires as needed.
Gree air conditioner error code E6
Causes:
- This occurs when the indoor unit is unable to communicate with the outdoor unit.
- The communication wire between two parts of the air conditioner is loose, disconnected, or broken.
Solutions:
- If you know the specific communication wire, check and ensure that it is not burned, loose, or broken, and that there aren’t any disconnection issues.
- If broken or burned, seek assistance from a technician to repair the wire or replace it completely.
Gree air conditioner error code E7
Causes:
“E7” is a conflict error and occurs when/if:
- Different modes are running on outdoor and indoor units of the air conditioner.
- The indoor unit is operating in cooling mode while the outdoor unit is operating in heating mode or vice versa.
Solutions:
- Look at the units’ display screen or air conditioner remote to check which modes are working. Switch the modes while making sure that both outdoor and indoor units are either working on cooling or heating modes simultaneously.
Gree air conditioner error code E8
Causes:
This error is reported due to multiple technical issues in the air conditioner.
- The main motor of the indoor unit is facing issues.
- The mainboard or PCB board of the air conditioner is faulty or malfunctioning.
- Fan motor forking is interrupted or completely stopped by the indoor unit.
Solutions:
- Seek the assistance of a technician to inspect the fan motor and fan itself for any faults. Repair or replace it if needed.
- Check the connectors and connections of the drive PCB and make sure that they are not loose or broken. Seek help from an electrician if required.
Gree air conditioner error code E9
Causes:
- This error occurs when the water pump of the indoor unit is not working properly.
- If you are getting this error in Gree Inverter AC, it indicates that the water level in the drain tray is increasing.
Solutions:
- Call an electrician to check the loose or broken wiring and connections between the main power element and the water pump. Repair the connection and wiring as required.
- If still getting an error, the motors in the indoor unit are faulty and need repairing.
- Make sure that water is draining out properly. Clean the drain tray by removing water, dust, and debris.
Gree air conditioner error code EE
Causes:
- This error is reported when the main outdoor “main control” memory chip or EEPROM of AC is malfunctioning or not working at all.
Solutions:
- Turn OFF the air conditioner for some time and then turn it ON again. Energize it multiple times until the error goes away.
- If still getting the error, the chip is most probably broken and you need to replace the main control board of the outdoor unit.
The same procedure will be used for any other issues in the main control memory chip of the indoor unit as well.
Gree air conditioner error code ee
Causes:
- This error is the same as the “EE” error but it is triggered when there are some issues in the “drive” memory chip of the outdoor unit.
Solutions:
- Turn OFF the air conditioner, for a few minutes before it turns ON again. Energize it multiple times.
- Replace the drive board of the outdoor unit if the memory chip is faulty or completely broken.
The same procedure will be used for any issues in the drive memory chip of the indoor unit as well.
Gree air conditioner error code EH
Causes:
This is a thermal relay error that can occur due to multiple reasons such as:
- The relay is stuck or covered because of dirt and debris build-up.
- Unstable voltages.
- The thermostat wire is loose or broken.
- Moisture and corrosion in the relay.
Solutions:
- Clean the relay thoroughly while removing dust and debris.
- Check the voltages and make sure that the wire between the relay and thermostat is fine and in place.
- Replace the relay or whole components if faulty.
Gree Air Conditioner “F” Series Error Codes
As soon as you see that the error code is starting with the “F” letter, you should realize that this is directly related to some sensor in the air conditioner.
Gree air conditioner error code F0
Causes:
- This error is an indication of some problem with the ambient temperature sensor of the indoor unit.
Solutions:
- Check the ambient temperature sensor in your AC’s indoor unit and make sure that it is 20K.
- If the ambient temperature sensor is damaged, small, open, weak, or broken, replace it with a new and compatible one.
Gree air conditioner error code F1
Causes:
- This error is reported by Gree AC when there is some problem with the tube sensor of the indoor unit evaporator.
- The 25K tube sensor is broken, small, open, weak, or burned and most probably needs replacement.
Solutions:
- Check the evaporator tube sensor for any damages, short circuits, or damages. Replace it if faulty.
- Check the wiring, connections, and connectors in the main PCB board of the indoor unit. Fix them if they are loose or broken.
Gree air conditioner error code F2
Causes:
- This error occurs when the temperature tube sensor of the AC condenser is not working or has some other problem.
Solutions:
- Seek the assistance of a technician to inspect the temperature sensor.
- Ensure that the sensor is 50K using a multimeter.
- Check and make sure there isn’t burned, opened, weak, or loose wiring and connections.
- If the sensor is completely damaged and cannot be repaired, replace it.
Gree air conditioner error code F3
Causes:
- This error is reported by Gree AC when the ambient temperature sensor of the outdoor unit is faulty.
Solutions:
- Check the ambient temperature sensor in the outdoor unit to ensure that it is 20K. You can check this using a multimeter and replace it if it is weak.
- Check the wiring for any burns or breakages and make sure there aren’t any loose connections.
Gree air conditioner error code F4
Causes:
- This error is an indication of some issue in the discharge pressure tube sensor of the compressor.
- The sensor is weak.
Solutions:
- Check the discharge tube sensor in the compressor using a multimeter to ensure it is 25K.
- Make sure that the wiring of the sensor is in place and that there aren’t any loose connections.
Gree air conditioner error code F5
Causes:
- “F5” is also a sensor-related error that indicates an issue in the wire-controlled temperature sensor of the unit.
Solutions:
- Check the wire-controlled temperature sensor for any loose, short, or open circuits.
- Check and ensure that the wiring between the sensor and the main PCB board is in place.
- Replace the sensor if it is completely burned, damaged, or faulty.
Gree air conditioner error code F6
Causes:
- This error indicates some issues with the tube-middle sensor of the outdoor unit.
Solutions:
- Seek the assistance of a technician to inspect the harness and connectors of the outdoor tube-middle sensor. Repair the harness as required.
- Check and ensure that the wiring between the sensor and the main PCB board is in place.
- If the sensor is broken or damaged, replacement is the only option.
Gree air conditioner error code F7
Causes:
- This error occurs when the tube-exit sensor of the outdoor unit is malfunctioning or not working at all.
Solutions:
- Check the harness of the tube-exit sensor for any loose, broken, or burned connections. Call an electrician for repairs.
- Check and ensure that the wiring between the sensor and the main PCB board is in place.
- Replace the sensor if damaged or faulty.
Gree air conditioner error code F8
Causes:
- The (fixed frequency) exhaust temperature sensor no.1 is malfunctioning or faulty.
Solutions:
- Check the harness for loose or broken connections. Call an electrician for repairs.
- Check to wire between the sensor and the main PCB board.
- Replace the sensor if needed.
Gree air conditioner error code F9
Causes:
- The (digital) exhaust temperature sensor no.2 is malfunctioning or faulty.
Solutions:
- Check the harness for loose or broken connections. Call an electrician for repairs.
- Check the harness between the sensor and the main PCB board.
- Replace the sensor if needed.
Gree air conditioner error code FA
Causes:
- The (fixed frequency) oil temperature sensor no.1 is malfunctioning or faulty.
Solutions:
- Check the harness for loose or broken connections. Call an electrician for repairs.
- Check the wiring between the sensor and the main PCB board.
- Replace the sensor if needed.
Gree air conditioner error code Fb
Causes:
- The (digital) oil temperature sensor no.2 is malfunctioning or faulty.
Solutions:
- Check the harness for loose or broken connections. Call an electrician for repairs.
- Check the wiring between the sensor and the main PCB board.
- Replace the sensor if needed.
Gree Air Conditioner “H” Series Error Codes
Gree air conditioner error code H1
Causes:
- This error is reported by the Gree air conditioner when the defrost mode has been activated in the unit.
- The control sensor equipped in the outdoor heat exchanger has turned OFF the heat supply to the indoor unit.
When the control sensor cuts off the heat injection to the indoor unit, the heat starts to move toward the outdoor unit. The unit turns ON the defrost mode as soon as the temperature starts rising too high.
Solutions:
- The error will be taken down after a minute or sometimes within seconds if the defrost mode is working efficiently.
If the defrost process has been completed perfectly but you are still getting the error,
- Call a technician to inspect the heat exchanger and the control sensor as they can be at fault. Replace the control sensor if needed.
Gree air conditioner error code H3
Causes:
- This error is triggered when the air conditioner enters the overload protection mode.
- Too much load on the AC compressor.
The unit will try to resolve the error by itself but if the unit (in standby or ON mode) detects that the overload switch is being cut off twice within 3 seconds, you will have to take down this error by yourself.
Solutions:
- Re-energize the air conditioner.
- Turn OFF the unit and then turn it ON again. Energize the unit multiple times to deactivate the compressor overload protection mode.
Gree air conditioner error code H4
Causes:
This error can occur due to any malfunctioning of the evaporator and condenser temperature.
- The tube temperature in the outdoor unit is higher than the normal or protective range of the temperature.
Solutions:
- Turn OFF the air conditioner and let it rest for a few minutes until the system cools down. Turn it ON again.
- Switch OFF the unit and energize the unit multiple times after turning it ON again.
Gree air conditioner error code H5
Causes:
- This error is triggered on the Gree air conditioner when the intelligent power module of the unit has activated the protection mode.
The protection module is a safety feature in the Gree ACs that controls and manages the problems of over-voltage, under-voltage, short circuits, high temperature, open circuits, and much more.
Solutions:
- Tighten the terminals attached to the compressor and main board.
- Adjust the compressor phase sequence properly.
- Call a highly skilled and experienced technician to inspect both the indoor and outdoor units of your air conditioner. They should inspect the elements like wiring, connections, and hardware of the unit for any malfunctioning and resolve the error accordingly.
- If still getting the error, the mainboard or the compressor needs replacement.
Gree air conditioner error code H6
Causes:
- The fan motor of the outdoor unit is malfunctioning.
- The fan motor is operating but the outdoor unit has not received any signal from the fan motor for 30 seconds straight.
Solutions:
If the malfunction happens only once or twice,
- The unit will pause functioning itself for some time and resume operations again. This will automatically take down the error.
If the malfunction occurs more than 5 times within 60 minutes,
- Turn OFF the unit and then turn it ON again. Energize the unit multiple times to resolve this fan motor malfunctioning.
- If still getting the error, call a technician to check the harness and connections of the outdoor fan motor.
Gree air conditioner error code H7
Causes:
- This error is triggered due to any issues with the compressor motor.
- Compressor motor desynchronization error.
Solutions:
- Same as suggested for error code H5.
Gree air conditioner error code HC
Causes:
- This error only occurs when there are some issues with PFC protection. It can only happen with 42K, 48K, or 60K sensors.
Solutions:
- Ensure that the PFC module is tightened perfectly.
- Replace the PFC sensor or mainboard of the unit after a talk with an AC technician.
Gree Air Conditioner “P” Series Error Codes
Gree air conditioner error code P5
Causes:
- This is a compressor current protection error and can occur due to voltage instability.
Solutions:
- Check and make sure that the compressor phase sequence is adjusted in the right way.
- Check the wire terminals and connectors of the compressor for any loose or broken connections. Seek professional help if required.
- Replace the mainboard if it is defective.
- Repair or replace the compressor, if faulty.
Gree air conditioner error code P6
Causes:
- This error is triggered when the main control board and drive board in the outdoor unit are unable to communicate.
Solutions:
- In most cases, the unit will take down the error by itself after some time.
- If the error remains, try restarting the air conditioner.
- Seek assistance from a technician if the error is not going as this could be a harness issue or the boards are faulty.
Gree air conditioner error code P7
Causes:
This error occurs only because of two reasons.
- The issue with the IPM temperature protection.
- A problem in the PFC temperature protection.
Solutions:
- Check and make sure that the IPM and PFC temperature protection sensor is in place, fine, and perfectly tightened. Seek professional help if required.
- Inspect the mainboard of the unit for any issues. Replace it if faulty.
Gree air conditioner error code P8
Causes:
- Issues with the IPM or PFC over-temperature sensor.
Solutions:
- Same as suggested for error code P7.
Gree air conditioner error code PA
Causes:
- The AC current protection from the input side is malfunctioning.
Solutions:
- Try restarting the air conditioner as this can be a one-time error and may get resolved.
- Call a technician to inspect the unit.
Gree air conditioner error code PC
Causes:
- The Current Sense Circuit is facing some issues or malfunctioning.
- Short circuit, burned or broken current sense circuit.
Solutions:
- Seek the assistance of a technician to inspect the circuit. Replace it or the whole mainboard as required.
Gree air conditioner error code PH
Causes:
- This is a DC busher over-voltage protection error and triggers when input voltages exceed the normal maximum range of 264VAC.
Solutions:
- Check the input voltages and make sure that they are in the normal range and stable.
- Unplug the switch from the sockets and call the power company to inform them about high voltages. Wait until voltages come to their normal range and then switch your AC back ON.
- If the voltage is fine but you are still getting the error, replace the mainboard as it can be faulty.
- If still getting the error, call a technician to inspect the compressor. Replace it if needed.
Gree air conditioner error code PL
Causes:
- This is a DC busher under voltage protection error and triggers when input voltages are lower than the minimum required limit of 185VAC.
Solutions:
- Check voltages.
- Unplug the power switch and inform the power company about low voltages. Wait until voltages come to their normal range and then turn your AC back ON.
- In case voltages are fine, replace the mainboard as it can be faulty.
- If still getting the error, call a technician to inspect the compressor. Replace it if needed.
Gree air conditioner error code PU
Causes:
This is a charging-related error and occurs when/if:
- Charging circuit elements are malfunctioning.
- The capacitor charge is unstable or malfunctioning.
Solutions:
- Seek assistance from a technician to check the wiring and tighten the PFC wire connection.
- Replace the mainboard or capacitor if needed. Seek the guidance of an expert before any replacement.
Gree Air Conditioner “L” Series Error Codes
Gree air conditioner error code L3
Causes:
- The fan motor of the outdoor unit is not working.
- The DC outdoor fan is not spinning even when the compressor is operating.
- The compressor, capacitor, or contactor is faulty.
- Low power to the outdoor fan.
Solutions:
- Check input voltages to the fan.
- Seek assistance from a technician to check the wiring between the power element and the fan motor.
- Ensure that all wiring, connections, and connectors are in place and not loose, burned, or broken.
- Try charging the capacitor with a new one.
- If still getting the error, the fan motor is at fault and needs repairing or overall replacement.
Gree air conditioner error code LC
Causes:
- This error occurs when there is some severe issue in the compressor.
- The compressor is unable to start at all.
Solutions:
- Try restarting the air conditioner as this can be a one-time issue and may get resolved after restarting the unit.
- If the error remains, the mainboard is faulty and needs to be replaced.
- If you are still getting the error, the compressor itself is faulty. Repair or replace it after a talk with an engineer.
Gree air conditioner error code LD
Causes:
- This error occurs when the air conditioner detects a phase loss or related issues.
Solutions:
- Same as suggested for error code H5.
Gree air conditioner error code LE
Causes:
- This error occurs because of low temperature or defrosts factors.
Solutions:
- The error will automatically be taken down by the air conditioner as soon as the defrost process is completed. AC will restart itself as well.
- Try to keep the compressor at a good temperature and prevent it from overheating.
Gree air conditioner error code L9
Causes:
- This is not an error but an indication that the power protection feature/mode in the air conditioner has been activated.
- A sudden surge in the power such as a high voltage supply or unit struck by lightning.
Solutions:
- Check line voltages and make sure that they are stable and consistent.
- Turn OFF the AC for about 2-5 minutes and then turn it ON.
- If still getting the error, seek the help of a technician to inspect the unit for any issues in the connections or power element of the unit.
If there was a huge power surge or the air conditioner was struck by lightning, it is recommended to call a highly experienced engineer to thoroughly inspect your AC before you start using it again.
Gree Air Conditioner “U” Series Error Codes
Gree air conditioner error code U3
Causes:
- This error occurs when the air conditioner detects an abrupt voltage drop on its DC bus.
Solutions:
- Call a local technician to check the power and line voltages and make sure that they are stable and being supplied consistently.
- If still getting the error, the main board of outdoor can be at fault. If that’s the case, replace it with a new one.
Gree air conditioner error code U7
Causes:
- This error is triggered when the 4-way valve is experiencing a direction-changing malfunction.
- For 10 minutes straight, the unit is detecting that the difference between the indoor ambient temperature and evaporator temperature is less than the protective value for the air conditioner.
Solutions:
If the malfunction occurs just 1 or 2 times,
- The system will take down the error by itself and will resume the operation as it was before.
If the malfunction occurs more than twice, the unit will not take down the error and you will have to replace it yourself.
- Turn OFF the unit and then turn it ON again. Energize the unit multiple times to fix this malfunction and resolve the error.
Other Miscellaneous Gree Air Conditioner Error Codes
Gree air conditioner error code C5
Causes:
- This error is a direct indication that the air conditioner’s jumper is at fault and most probably needs a replacement.
Solutions:
- Replace the indoor board, disconnect the jumper from the old board and move it to the newly installed one.
- If still getting the error, seek the assistance of a technician to inspect the jumper and replace it if faulty.
Know that there is a jumper in the outdoor unit as well. If the outdoor jumper is at fault, you can apply the same solutions for outdoor units as well.
