Air Conditioner FAQs : Troubleshooting


Haier - Dehumidifier Displaying an Error Code

If your dehumidifier is displaying a message or code, check the following:Code   Description/Reason  Solution ONAudible alert is enabled.When the water reservoir is full, the red Bucket Full indicator will flash an alert will signal 5 times every fifteen minutes until t...

Haier - Portable Air Conditioner Tank Needs Emptying Too Often

Part of the cooling process is removing humidity from the room. When first installed or after the unit has not been used in awhile, it is normal for the tank to fill up quickly and require more frequent emptying. Even once an hour can be normal.Initially, you are not only dehumidifying the...

Haier - Portable Air Conditioner Not Cooling

Portable air conditioners are the most effective when used in small spaces or when used for supplemental cooling or heating (on Heat/Cool models) in large spaces. They are not able to cool large room or multiple rooms.If your portable air conditioner is not cooling properly, first mak...

Haier - Portable Air Conditioner Not Draining Properly

If the portable air conditioner is not draining properly, inspect the reservoir tank for debris or other items that might be blocking the drain assembly. Additionally please make sure the unit is level.If you continue to have problems, please contact Haier Appliances at 1-877-337-3639 or visit https...

Haier - Air Conditioner Remote Not Working

If the remote for the air conditioner is not working, check the following:Make sure the batteries are installed properly. You may need to change the AA batteries.Make sure nothing is blocking the IR receiver on the front of the air conditioner. It often looks like a small black glass window. You may...

Haier - Portable Air Conditioner Error Codes

Error and fault codes help a technician diagnose issues with the portable air conditioner. If the  unit is displaying an error, check the chart below for possible error code resolutions:  Fault Code Description/Reason   Solutions E0 Indicates incoming power issue...

Haier - Portable Air Conditioner Incorrect Temperature on Display

The set temperature only shows on the display for a moment after adjustment. This is normal operation. After adjusting the temperature, the display reverts to the actual temperature value in the room. While you are pressing the temperature adjustment buttons the set temperature will change.

Haier - Ductless Air Conditioner Runs But Will Not Cool

If your ductless (split air) air conditioner is running but not cooling, check the following: Verify the unit is in COOL mode and not DRY mode. If the unit is set to COOL, the fan will continue to run even after the room has reached set point. This is normal operation.  Check the...

Haier - Space Heater Continually Shuts Off

Check the following if portable electric heaters (space heater) continually shuts off:The thermostat on the heater is not set high enough, adjust the setting.The heater needs to be reset due to an overheat situation. Consult your owner’s manual for additional details.If the unit has tip-ov...

Haier - Air Conditioner Not Running

If the window, built-in, or portable air conditioner has stopped working or will not come on:Verify the outlet you have the air conditioner plugged into is working properly. Also, If the plug is not tight in the outlet, it may not make a good connection. If the outlet is not working or the...

Haier - Space Heater Cord Warm

In most cases a warm cord does not mean that there is a problem with a heater. The most common cause:An old or worn out outlet:If there is a loose connection between the plug and the socket then that will cause resistance and in turn heat buildup.If there is not a tight fit between the plug and the ...

Haier - Window Air Conditioner Blowing or Spraying Water into Room

Condensation of water on the evaporator coils in the front of an air conditioner is normal. This water collects in a pan where it is evaporated. On days with high humidity, you may notice some water dripping off the unit.A properly installed unit will be tipped slightly back to allow any excess wate...

Haier - Window Air Conditioner Odor or Burnt Smell in Heat Mode

Some window air conditioners with heat have an electric heater. When heat mode is selected, from new unit or after unit was stored, it might produce a burning smell. The burning smell is the dust burning off; this goes away after about 10 minutes of use.

Haier - Dehumidifier Not Running

If the dehumidifier is not working or coming on, check  the following:Make sure the plug is pushed completely into the outlet.Check the power outlet to ensure it is working properly by plugging another item into the outlet. Also check the house fuse/circuit breaker.The bucket may be full. ...

Haier - Ductless Air Conditioner Fan Runs All the Time in COOL Mode

For ductless (split air) air conditioning units, the fan will operate the entire time while in COOL mode. This is a normal operating condition. The indoor fan needs to be operating to draw air across the indoor unit sensor to determine the temperature of the room. This determines whether the ou...

Haier - Dehumidifier Not Draining Properly

If the dehumidifier is not draining properly check the following:Inspect the reservoir for anything that might be blocking the drain process.Ensure that you are using a hose no longer than five feet.Ensure that the hose is draining down into a drain in the floor.Verify the end of the drain hose is l...

Haier - Air Conditioner Runs Constantly or Not Cooling

If your air conditioner is running constantly and/or not cooling, check the following: The unit may be too small for the room The unit may not be cooling properly. Check the filter to see if it needs to be cleaned Check the outdoor coils (on rear of unit) for dirt build up  If dirty, v...

Haier - Air Conditioner GFI / GFCI Plug Issues

Haier window, built-in, and portable air conditioners have a leakage current detection interrupter device (LCDI), also referred to as a GFI/GFCI plug. If a problem occurs with the unit or with the electrical supply, the Reset button on the plug may pop out (trip). This will cause the unit to st...

Haier - Window Air Conditioner E0 on Display

E0 can be caused by an incoming power issues, such as a low voltage condition or excessive power consumption. On occasion this can be resolved by unplugging the unit for 10 minutes.If you continue to have problems, please contact Haier Appliances at 1-877-337-3639 or visit https://www.haierappliance...

Haier Air Conditioner Built-In WiFi Connect - Set-Up Troubleshooting

For help connecting your WiFi Connect Air Conditioner: Haier Air Conditioner - Set-Up Built-In WiFi ConnectIf you have difficulty with the set-up process when connecting your WiFi Connect Air Conditioner to your WiFi:Wrong Password You may have entered the wrong appliance network password. Re-enter ...

Haier - Dehumidifier Frost or Ice on Coils

When the temperature goes below 60 degrees F, frost or ice can form on the coils, which prevents moisture removal. When the room temperature falls below 60F, the unit will go into an Auto Defrost (electronic controls) or Auto Frost (knob controls) mode to remove frost from the coils before star...

Haier - Dehumidifier Odor

A dehumidifier by itself will not produce any form of smell. Usually any smell that emits from the unit will be something that is recycled from the room itself.

Haier - Portable Air Conditioner Cycling Too Much

If your portable air conditioner is turning off and on every few minutes, your unit is probably too large for your room and is "short cycling."This happens when cold air from an oversized unit bounces off the wall and back towards the unit, creating a room temperature reading that's cooler than the ...

Haier - Portable Air Conditioner Not Heating Enough in Cold Temperatures

In heat mode, portable air conditioners use heat-pump technology. Heat pumps operate in a similar fashion to an air conditioner, but in reverse. The unit pulls heat from outside and transfers it inside. The more outside heat available, the more effective this will be.The heat output drops as the out...

Haier - Ductless Air Conditioner Freezing Up

Several common problems can cause the ductless (split air) air conditioner to freeze-up:Insufficient Air FlowAnything that restricts air flow will cause the temperature of the system's evaporator coil to drop below freezing.Humidity in the air will collect on the coil causing ice to build-up, which ...

Haier - Scratches on Appliances

There two types of finishes on our appliances: Stainless Steel: Uncoated stainless steel.  Baked-On Porcelain: High quality porcelain enamel that is powder coated and baked on. Found on Black and White models. Scratches on Non-Stainless Finishes To keep your appliance looking new and ...

Haier - Space Heater Odor or Burnt Smell

It is possible that a new heater will produce an odor when first used. This is normal and should go away after the heater has been used for a while. A heater can also have a burning odor from dust building up on the element.

Haier - Portable Air Conditioner Power Interruption

When powering up the unit for the first time, it will start in a high fan cooling mode. If the unit has been in use and is unplugged or there has been a power interruption/outage, it will restart and turn to the last setting used.

Haier - Ductless Air Conditioner Will Not Run

If your ductless (split air) air conditioner will not run, check the following: Does the indoor unit respond to control demands?  If it does not, check for a tripped breaker. If the breaker continues to trip after resetting it, a service provider should be called. If you have more than one...

Haier - Air Conditioner Plug is Hot or Sparking from Wall Outlet

Depending on the cooling power of the unit air conditioners can draw between 5 and 10 amps of current.   It is important to understand that the unit must be connected to a dedicated outlet and plugged in firmly.Do not allow the excessive cord length to apply weight onto the plug, be s...

Haier - Dehumidifier Not Operating Properly in Cold Room Temperatures

Dehumidifiers do not work well when the air temperature is lower than 40 degrees F. They rely on having a surface that is colder than the air to attract humidity. If the air temperature is below 40F the unit cannot get cold enough to attract moisture at the same rate that it does when the air temper...

Haier - Window and Wall Air Conditioner Fault / Error Codes

Fault codes are programmed in air conditioner controls to help service technicians quickly diagnose issues with the unit. In the event that the electronic control displays a fault code, a trained service technician should be called to diagnose and correct the issue. We do not have a list of all the ...

Haier - Ductless Air Conditioner Remote Control Operation and Troubleshooting

Indoor units are controlled by a wireless remote control.Each indoor unit comes with a wireless remote control and is used to make any changes to unit settings.The remote does not sense the room temperature (like other units). The sensor is inside the indoor unit.Remote comes with a w...

Haier - Ductless Air Conditioner Turns Off and On Every Few Minutes

When set to HEAT mode, the system will shut down once the room reaches the set point. The fan will cycle on every few minutes to sample the air temperature. This is normal operation.Other causes:  The ductless (split air) unit could be too large for your room and is "short cycling." This happen...

Dehumidifier - Not Collecting Water

If the dehumidifier is not collecting water, the unit is not operating properly. Try to reset the dehumidifier by disconnecting power for 30 seconds and re-connecting the power. If the unit is still not collecting water, please refer to the model's warranty located in the Owner's Manu...

Haier - Air Conditioner White Foam

Certain components are secured using Permagum, which acts as an adhesive and an insulator to prevent condensation.

Haier - Air Conditioner Freezing Up

Several common problems can cause air conditioner freeze-ups:Insufficient Air Flow:Anything that restricts air flow will cause the temperature of the system's evaporator coil to drop below freezing.Humidity in the air will collect on the coil causing ice to build-up and diminish the system's cooling...

Haier - Dehumidifier Not Reaching Proper Relative Humidity Level

Check the following if the relative humidity setting is not being reached after a long period of operation:When first installed, allow at least 3-4 days to remove moisture from the room to maintain the desired dryness. The unit is dehumidifying the air as well as the moisture from walls an...

Haier - Portable Air Conditioner Dripping or Leaking Water

As long as the unit is installed and leveled properly, this unit should not drip inside the home. If the unit is leaking, check the exhaust vent and whether the unit is level.Exhaust Vent ConnectionsEnsure the exhaust hose couplings are inserted properly. Any air leakage inside the room can lea...

Haier - Dehumidifier New Installation Bucket Full Light On

When the unit is turned on, the Bucket Full light may be lit. Remove the bucket and put it back in, making sure it is pushed properly into place. The Bucket Full light will then shut off.

Haier - Ductless Air Conditioner Error Codes

Ductless (split air) air conditioners will display an error code beginning with either an E or an F (ex. E7, F8) when the system needs attention. Error codes will be displayed at the indoor unit on the LED display or a flashing pattern of the LED lights. These codes tell a qualified s...

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