Haier Air Conditioner Errors: Decoding Error Codes and Tips for Fixing Them

Haier household air conditioners belong to the class of reliable and hardy appliances. Consume energy efficiently and do not harm the environment. They have a Eurovent system certificate confirming the high quality of the devices and are sold at a reasonable price.

But even in such operationally stable units, breakdowns and malfunctions occur. If a malfunction occurs, the manufacturer recommends contacting a service center immediately. This is reasonable advice, especially when the engine and the electronics system fail.

But you must admit, there is no point inviting the master, wasting time waiting for him and putting out extra money for something that you can quickly and easily fix on your own. Moreover, all the errors of the Haier air conditioner are displayed, and it is not necessary to guess which node is unusable. You only need to correctly decrypt the alphanumeric abbreviation, and find the best way to resolve it.

It is for this that we have compiled a detailed overview of the typical Hayer air conditioner error codes and methods for resolving them. With such information at hand, you will know exactly what problems can be fixed at home, and in which cases you can’t do without the participation of a specialist in the repair of climate control equipment.

Causes of damage to Haier air conditioners

Hayer air conditioners are not afraid of intensive operational loads and work without failures around the clock. Effectively cool / heat residential, work and office premises.

About 92% of malfunctions arise as a result of improper operation of devices and voltage surges in the network. By the way, so that not only the air conditioner, but also other equipment does not suffer due to power surges, you can install stabilizer.

Identified damage must be repaired as soon as possible.Operation of a faulty device exacerbates the problem and often leads to damage to dependent or adjacent parts and then the cost of repair increases at times.

Some private masters rely on the incompetence of the client, try to impose unnecessary services, repair of working elements, etc. A person who understands error codes will immediately notice and stop attempts to deceive

To avoid the majority of breakdowns, it is necessary to correctly connect the unit and operate it in strict accordance with the manufacturer's recommendations. Then Haier will last a long time and will not cause any problems.

The principle of operation of the self-diagnosis system

Haier inverter and traditional air conditioners have an innovative self-diagnosis system.

The control microcontroller monitors performance, identifies problems in blocks and individual modules. In the event of a malfunction, it blocks the climatic equipment and starts self-diagnosis.

Hyer air conditioner owners do not have to memorize the complete decoding of error codes. Just download the table on your smartphone. Or leave a link to this article in your browser bookmarks

Having detected problem areas, the system notifies the user with a sound or light signal. Or displays an error code. If several failures are detected at once, the most serious ones are eliminated first. Then minor faults are repaired.

Work stops when the equipment is able to function in standard mode, and alphanumeric abbreviations of error codes are no longer displayed on the display.

What problems can I fix with my own hands?

Haier air conditioning is a sophisticated climate control system with several operating modes and additional comfort options.

Users can independently carry out the following operations:

• cleaning / replacing filters;
• unlocking the operation of the blinds by removing foreign objects;
• restoration of full power supply;
• replacement of sensors;
• equipment service.

It is recommended to entrust a certified specialist to eliminate refrigerant leakage, repair the electric motor of the indoor module, repair the electronic control system, diagnose and adjust the correct operation of the compressor. A home master without experience will not cope with such problems, but only exacerbate them.

Typical Error Codes and Solutions

Haier air conditioners have two types of errors - E or F.

The first indicate problems in the power section of the module. The second signals a malfunction of temperature sensors and related parts. The numbers next to the letter designation more accurately describe the type of breakdown.

Error codes in Haier split systems are displayed on the display and the remote control. The user immediately sees that a malfunction has occurred, and promptly takes measures to eliminate it

Additional troubleshooting information is provided by indicator. The light diode flashes from 1 to 25 times and helps to understand what exactly happened with the climate technology.

Decoding E-Type Error Codes

E0 indicates a violation of the condensate drain function.

On the scoreboard of new air conditioners appears in the following cases:

• evaporator freezing - occurs when the amount of refrigerant in the system is insufficient, the evaporator and filters are dirty;
• freezing of the outlet area of ​​drainage communications - manifested duringair conditioning heating in the winter season at low temperatures - the water discharged to the street freezes, clogs the pipe and prevents the movement of condensate;
• functioning of equipment during the cold season without pressure regulator - when the air temperature outside decreases, the pressure in the system drops, the evaporator temperature drops, it is covered with ice, which interferes with the proper removal of condensate;
• drainage blockage - particles of dust, dirt, animal hair, grease, poplar fluff penetrate the communication system from the room or from the street into the communication system, and over time they create a dense mud plug and prevent the condensate from collecting.

In older appliances, damage to the drainage system may be the cause of the breakdown. Is it worth repairing it, changing it to working, or is it more profitable to buy a new air conditioner? There is no single rule. Each case is considered individually.

The decision is made depending on the condition of other units of the split system and the price of repairs.

Use the antenna cable or wire to remove the mud plug from the drainage system of the Haier air conditioner. But the result of the service will be short-lived. It is better to conduct a thorough cleaning and forget about the problem of condensate drain for a long time.

If the reason lies in the clogging of the drainage tube, you must de-energize the air conditioner, disconnect the blinds and remove the decorative panel of the housing. Remove the coarse filters and the pan, having previously disconnected it from the condensate drain system, and rinse thoroughly with a weak solution of water and dishwashing liquid. Clean the drain hole from dirt.

Blow out the drain pipe with a vacuum cleaner. If the blockage does not disappear, put in a syringe a liquid composition for cleaning the air conditioners, pour it into the bypass communications and leave it for a period of 15 minutes to half an hour. Then use a vacuum cleaner to remove any residual dirt.

Treat the filters and the pan with a disinfectant. Use a soft-brushed brush to clean the evaporator and fan turbine. Assemble the air conditioner and start it.

And hererefrigerant charge best left to qualified craftsmen. It will be difficult for a person without experience and certain skills to conduct the procedure correctly.

Haier air conditioners can cause ice in the indoor unit due to dirt-clogged filters, an impeller covered with a dense layer of dust, and a clogged surface of the heat exchanger evaporator

E1 indicates increased pressure in the compressor. E3 indicates that the pressure is insufficient. Ignoring problems leads to a breakdown of the mechanism. Corrects refrigerant charge position.

E2 notifies the owner that the heat exchanger of the indoor unit is covered with ice. Contamination of individual structural elements provokes the situation, which reduces the quality and efficiency of heat transfer.

In some cases, weakening of the air circulation leads to freezing. This happens when the air conditioner is mounted in a niche, closed with decorative plates or other interior elements. We recommend that you read the ruleschoosing the best place to install air conditioner.

The cause of ice formation may be a mismatch of the type of air conditioner with operating conditions, for example, starting the device in the cold season without special protection from low temperatures

Constantly formed ice in the future leads to malfunctions of the control board, sticking of the relay contacts, failure of the evaporator freezing sensor, and other breakdowns. All of them are classified as complex and can only be corrected in the service center.

The icing of the tubes of the disconnected appliance indicates improper installation or leakage of refrigerant through depressurized communications.

Resolving the problem helps clear the appliance from ice. This can be done at home, after disconnecting the device from the mains.

E4 indicates compressor overheating. This leads to an internal radiator clogged with dirt, dust and burning. It does not provide high-quality heat dissipation, and the motor does not have time to cool. After cleaning, the performance of the air conditioner is restored.

If an increased amount of refrigerant is charged during refueling, the system will operate with overload and the compressor will begin to heat up actively. To clarify this point, you need to call the wizard.He will check the amount of coolant in the system and remove the excess.

The compressor heats up more when the fan of the outdoor unit fails. It is not recommended to operate the device in this condition. Otherwise, the need for expensive repair of adjacent nodes will be added to the replacement of the fan.

It causes the compressor to overheat a capillary tube clogged with dirt and dust. It must be replaced with a new one, and the engine will begin to work in normal mode and without voltage.

A clogged filter of the indoor unit often leads to overheating of the compressor. This problem is solved quickly and easily - by cleaning the filter.

Error E5 appears on the display when the compressor shuts off due to excessive load. The reasons for the node overload are described in the interpretation of the error code E4. If the factors causing overheating are not timely eliminated, the system will block operation and the compressor will stop functioning.

We recommend that you familiarize yourself with the features compressor diagnostics, basic malfunctions and methods for their elimination.

To clean the air conditioners, it is recommended to use special tools. They quickly remove all types of contaminants, disinfect the surface, do no harm to metal parts, the case and the radiator

E6 indicates a lack of communication between the indoor and outdoor units of the air conditioner. This can happen due to lack of power, mixed wires of the interconnect connection, blown fuses or malfunctions of electronic control boards.

Independent search and elimination of the cause of the error is possible only if you have experience working with electronic "stuffing" of household appliances. If not, you should contact a service center for help.

E7 lights up when the indoor unit does not respond to commands from the remote control. To troubleshoot, you must disconnect the unit from the network and turn it back on after 30-40 seconds.

If nothing has changed, you must:

• make sure that the remote control is in the range of the signal;
• replace the batteries with new ones;
• check for signs of damage on the remote control.

In the process of troubleshooting, you need to try to turn on the air conditioner through the buttons on the case. If the device is working, then there is a problem with the remote control. The photodetector may have broken or a wire breakage has occurred. In this case, you will need to re-solder the failed radio elements on the chip and restore the broken wires. Or replace all broken parts with serviceable ones.

If the unit does not turn on, you need to look for a problem in the electronic systems and the control board of the indoor unit.

Repairing the remote control is not always advisable. You can purchase a universal remote control and use the air conditioner further. But the universal model may not support a number of options available for advanced models of air conditioners

E8 signals overload of the electric motor of the indoor unit. Eliminating such damage is not for the home master. Best of all, qualified professionals who professionally repair HVAC equipment can handle this.

What are F-type error codes talking about?

F0 indicates that the temperature sensor in the room has turned off, setting the compressor operation mode.

For more detailed diagnostics, it is necessary to disconnect the air conditioner from the network, remove the sensor from the connector on the board and check its resistance level. If the indicator does not correspond to the norm, the part will need to be replaced.

An ohmmeter or multimeter is required to measure the resistance of the room temperature sensor. Compare the obtained indicators with the parameters specified in the technical documentation of the air conditioner

F1 indicates that the temperature sensor of the heat exchanger of the indoor unit is turned off. This sensor monitors the temperature of the evaporator. If it drops below zero, it shuts off the compressor to prevent the evaporator from icing up.

To fix the problem, you need to check the functionality of the sensor.If it fails, immediately replace with a new one.

F2 indicates the shutdown of the temperature sensor of the heat exchanger of the external module, F3 - the termination of the outdoor temperature sensor, F4 - to turn off the temperature sensor at the air supply.

The code F6flashing 12 times, indicates a malfunction in the outdoor temperature sensor. In all of the above options, you need to check the quality of the connection of the sensors to the control board. If the connection is broken, restore it. Or replace the faulty sensors with new ones.

Letter abbreviation Ff indicates irregularities in the supply of electricity. In this case, you need to check whether there is electricity in the network itself, whether socket, and in what condition is the connection cable.

The code F11blinking 6 times indicates that the mains voltage is not normal. When it is too low, the air conditioner cannot work at full strength. When too high, there is a risk of short circuit, failure of fuses and electronic circuit boards.

If this situation is observed regularly, you should consider buying a household appliance to stabilize the voltage or do-it-yourself stabilizer. It will equalize the voltage in the network and protect the equipment from burnout.

The reason for the malfunction of air conditioners is often the incorrect installation of indoor or outdoor units. Trust the installation only to experienced craftsmen with a good reputation, and not to random people

The code F11flashing 19 times, reports a malfunction in the control board. The reason here is overload, sudden changes in mains voltage or fuse blowing.

To find out, you need to carry out a full diagnosis of the board, check the condition of the transformers and capacitors, ring the diode bridge and evaluate the performance of the stabilizer. If significant elements cannot be restored, you must replace the board with a new one.

The code F12flashing 1 time, indicates that a short circuit has occurred in the head board. The reason is a surge in voltage, overloads and the influence of natural phenomena (lightning, etc.). If the fuse is blown, then after replacing it, the air conditioner will again work in normal mode.

If the board itself has seriously suffered, it will be necessary to invite the master to assess the level of damage and the feasibility of repair. You may need to change the board to a new one. Then the process of restoring the climate technology will be delayed, since it will be necessary to wait for the delivery of the original part.

Universal repair guidelines

Before starting work, disconnect the air conditioner from the mains.

Carefully read the instructions that came with the device. This will save time on the search for twisting fasteners and plastic latches that hold the external elements of the climatic equipment case.

When repairing an air conditioner at home, use an electrically insulated tool. Be careful and careful not to touch rotating or live parts.

Shoot the sequence of analysis of the internal part of the block on a smartphone. This will help to assemble the unit correctly and ensures that all parts are in place. Do not make changes to the device operation diagram. Replace only with original parts or equivalents approved by the manufacturer.

Do not repair in a hurry. Allocate at least 1-2 free hours to this activity. Check if necessary tools are available.

You will definitely need:

• slotted (flat) and Phillips screwdrivers of small and medium sizes;
• nippers;
• pliers;
• multimeter;
• wire to create jumpers.

Depending on the model, wrenches and hexagons may be required. If most of the tools are not available, think carefully about whether to start a repair.

Conclusions and useful video on the topic

How to clean the air conditioner at home:

How to independently diagnose the air conditioner - recommendations for beginners:

The Haier split system is a complex unit with many additional features. With strict observance of the operating rules and timely replacement of consumables, it works for a long time and without failures. The manufacturer gives a branded guarantee on the equipment. During its operation, it is not recommended to repair the device yourself.

When the warranty has expired, minor breakdowns can be fixed with your own hands, and you can entrust the restoration of the operation of power components and electronic boards to professionals specializing in the maintenance of HVAC equipment.

Still have questions about decoding error codes for Haier brand air conditioners? Ask them to our experts and other visitors to the site - the block for comments is located below this publication. Here you can also share useful tips and personal experience in repairing or servicing an air conditioner of this brand.