Gree air conditioner troubleshooting

Most air conditioners are equipped with self-diagnosis system, which – if a fault occurs – gives signals by flashing special indicator or showing an error sign on the display. In such cases, look at the error code of your model. Look at the table below to learn about the main causes of the problems and ways how to solve them.

Gree GEHAA-D3DNA1CI air conditioner troubleshooting

Not runningCheck if electrical wire is damaged and if breaker switch is on. Check if the power supply is correct.
Check if the timer switch is on or not.
The air conditioner runs but does not cool enoughCheck if the preset temperature is too high.
Check if sunlight is shining directly into the room. Check if the doors and windows are open.
Check if there is anything obstructing the air discharge. Check if the exhaust fan is working.
Check if the air filter is dirty or clogged.
Vapour or mist coming out of the unit while running.Hot air in the room mixes with cool air. This causes mist.
Remote control not workingLoose or disconnected wire between the unit and the display. Check if the batteries are inserted in correct direction.
Check if the batteries are empty.

Gree GWH09AB-A3DNA1B air conditioner troubleshooting

Air conditioner does not restart.Cause: The evo system has a built in 3 minute delay to prevent short and/or rapid cycling of the compressor.
Solution: Wait 3 minutes for the protection delay to expire.
Air conditioner emits unpleasant odor when started.Cause: Typically unpleasant odors are the result of mold or mildew forming on the coil surfaces or 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.
You hear a “water fl owing” sound.Cause: It is normal for the air conditioning 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 2 or 3 minutes.
A thin fog or vapor coming out of the unit when air conditioner is running.Cause: It is normal for the air conditioning 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.
You hear a slight cracking sound when the air conditioner stops or starts.Cause: It is normal for the air conditioning system to make "slight cracking” sounds from parts expanding and contracting during system starts and stops.
Solution: The noises should discontinue as temperatures equalizes after 2 or 3 minutes.
The unit will not runCause: 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 control are low.
• Remote control is in Sleep mode or Timer mode.
• Otherwise, you should contact a Qualified Service Professional for assistance.
Heating or cooling not running effi ciently.Cause: Your evo system is designed to operate at peak efficiency for years with routine maintenance.
Solution: Check the following reasons for loss of system efficiency:
• Remove obstructions blocking the return or discharge air flow into the room.
• Clean dirty or blocked indoor air filter that is restricting air flow into the system.
• Seal outdoor air leaks in the room space from door or windows.
• Relocate (if possible) other heating sources in the room space.
Wireless remote control lost or does not work.Cause: There are a number of reasons for the remote control not to work.
Solution: Check the following reasons for the remote control not working:
• The batteries might be low, change the batteries.
• The remote control must be within 25 ft (7.6m) with no obstructions of the indoor unit.
If remote control is lost or damaged and need to be replaced, contract your qualified service professional for assists. In the meantime, use the manual Override Mode to operate the evo system.
Water leaking from indoor unit into the roomCause: It is normal for air conditioning system generate condensate water in cooling mode. The evo system is designed to effectively and efficiently collect and safely drain the condensate water from the indoor unit to the outdoors via a condensate drain tube.
Solution: Water leaking into the room indicates:
• The indoor unit is not level right to left. Level indoor unit.
• The condensate drain tube is restricted or plugged. All restricts must be removed to allow continuous gravity force drainage.
• If problem persist, contact a qualified service professional for assistance.
Water leakage in outdoor unitCause: It is normal for outdoor unit to generate condensate water in reverse cycle heating mode and defrost.
Solution: Water leaking from the outdoor unit is normal in reverse cycle heating mode or defrost.

Gree GWHD(48S)NM3CO air conditioner troubleshooting

ConditionsCausesCorrective actions
The unit does not run at allBroken fuse or breaker is off'Replace the damaged fuse or close the breaker
Power offRestart the unit after power supply resumes
Power supply plug is loosePlug the power supply properly
The batteries voltage of the remote controller is insufficientReplace with new batteries
Remote controller is out of the control scopeThe distance shall be within 8m
The unit stops soon after it startsAir inlet or outlet of indoor unit or outdoor unit is blockedRemove the obstacles
Cooling or heating is abnormal
Temperature setting is improperAdjust the setting of remote controller or wire controller
Air speed is set too low
Improper airflow direction
Door or window is openClose the door or window
Under direct sunshineHang curtain or blinders over the window
Too many people in the room
Too many heat sources indoorsReduce the heat sources
The filter screen is dirt or blockedClean the filter screen
The unit does not runWhen restart the unit soon after it is stoppedThe overload protection switch of the unit let the startup delayed for three minutes
As soon as power supply is onThe unit will stand by for approximate one minute
The unit blows out mistWhen the cooling operation startsThe hi-humidity air indoor is cooled quickly
The unit generates noiseThe unit “clatters” as soon as it starts runningIt is the sound generated during the initialization of the electronic expansion valve
The unit “swishes” during the cooling operationIt is the sound when the refrigerant gas runs inside the unit
The unit “swishes” when it is started or stoppedIt is the sound when the refrigerant gas stops running
The unit “swishes” when it is in and after the runningIt is the sound when the draining system is operating
The unit “squeaks” when it is in and after the runningIt is the sound of frication generated by the skin plate etc which swells due to the temperature change
The unit blows out dustWhen the unit restarts after it is not used for a long timeThe dust inside the unit is blown out again
The unit emits odorsWhen the unit is runningThe odors absorbed in are blown out