Haier air conditioner errors: decoding error codes and tips for eliminating them

Haier household air conditioners belong to the class of reliable and durable equipment.They consume energy economically 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 such operationally resistant units have breakdowns and malfunctions. If any malfunctions occur, the manufacturer recommends immediately contacting the service center. This is sound advice, especially when the engine and electronics fail.

But you must admit, there is no point in inviting a specialist, wasting time waiting for him and shelling out extra money for something that you can quickly and effortlessly fix yourself. Moreover, all errors of the Haier air conditioner are displayed on the display, and there is no need to guess which unit has become unusable. You just need to correctly decipher the alphanumeric abbreviation and find the best way to eliminate it.

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

Causes of Haier air conditioner breakdowns

Hyer air conditioners are not afraid of intense operating loads and operate around the clock without failure.Effectively cool/heat residential, work and office spaces.

About 92% of problems occur 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 voltage surges, you can install stabilizer.

Any identified damage must be corrected as quickly as possible. Operating a faulty device aggravates the problem and often leads to damage to dependent or nearby parts, and then the cost of repairs increases significantly.

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

To avoid most 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.

Operating principle of the self-diagnosis system

Haier inverter and traditional air conditioners are equipped with an innovative self-diagnosis system.

The control microcontroller monitors indicators and detects problems in blocks and individual modules. If there is a malfunction, it blocks the climate control equipment and starts self-diagnosis.

Owners of Hayer air conditioners do not have to memorize a complete decoding of error codes. All you need to do is download the table to 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 it displays an error code.If several breakdowns are detected at once, the most serious ones are repaired first. Then minor faults are repaired.

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

What problems can you fix yourself?

Haier air conditioner is a complex climate control equipment with several operating modes and additional comfort options.

Users can independently perform the following operations:

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

It is recommended to entrust the elimination of refrigerant leaks, repair of the electric motor of the indoor module, repair of the electronic control system, diagnostics and adjustment of the correct operation of the compressor to a certified specialist. A home handyman without experience will not cope with such problems, but will only aggravate them.

Typical error codes and solutions

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

The first indicate problems in the power part of the module. The latter indicate a malfunction of temperature sensors and related parts. The numbers next to the letter designation more accurately characterize the type of breakdown.

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

Provides additional information about problems indicator. The light diode blinks from 1 to 25 times and helps to understand what exactly happened to the climate control equipment.

Decoding E-type error codes

E0 indicates a violation of the condensate drainage function.

Appears on the display of new air conditioners in the following cases:

• evaporator freezing — occurs when there is insufficient amount of refrigerant in the system, the evaporator and filters are dirty;
• freezing of the outlet area of ​​drainage communications - appears during air conditioner operation for heating in the winter season at low temperatures - the water discharged outside freezes, clogs the tube and prevents the movement of condensate;
• operation of equipment during cold periods without a pressure regulator — when the air temperature outside decreases, the pressure in the system drops, the temperature of the evaporator drops, it becomes covered with ice, which interferes with the correct removal of condensate;
• clogged drainage tube — through the filter from the room or from the street, particles of dust, dirt, animal hair, grease, poplar fluff penetrate into the communication system, and over time they create a dense dirt plug and prevent the removal of accumulated condensate.

For older appliances, the cause of failure may be wear and tear of the drainage system. Whether it is worth repairing it, replacing it with a working one, or whether it is more profitable to buy a new air conditioner, the service center employees will tell you in detail. There is no single rule here. Each case is considered individually.

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

You can remove the dirt plug from the drainage system of your Haier air conditioner using an antenna cable or wire. But the result of the service will be short-lived. It is better to carry out a thorough cleaning and forget about the problem of condensate drainage for a long time

If the reason lies in a clogged drain tube, you need to turn off the power to the air conditioner, disconnect the blinds and remove the decorative panel of the housing. Remove the coarse filters and the tray, having previously disconnected it from the condensate drainage system, and rinse thoroughly with a weak solution of water and dishwashing liquid. Clean the drain hole of any dirt.

Use a vacuum cleaner to blow out the drainage pipe. If the blockage has not disappeared, fill a syringe with a liquid composition for cleaning air conditioners, pour it into the outlet communications and leave for a period of 15 minutes to half an hour. Then use a vacuum cleaner to remove any remaining dirt.

Treat the filters and tray with a disinfectant compound. Clean the evaporator and fan turbine using a soft bristle brush. Assemble the air conditioner and start it up.

And here refrigerant charging It is better to entrust it to qualified craftsmen. It will be difficult for a person without experience and certain skills to carry out the procedure correctly.

The appearance of ice in the indoor unit of a Haier air conditioner is caused by filters clogged with dirt, an impeller covered with a dense layer of dust, or 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 mechanism failure. Filling with refrigerant corrects the situation.

E2 notifies the owner that the heat exchanger of the indoor module is covered with ice. The situation is provoked by contamination of individual structural elements, which reduces the quality and efficiency of heat transfer.

In some cases, reduced air circulation leads to freezing. This happens when the air conditioner is mounted in a niche, covered with decorative slabs or other interior elements.We recommend that you read the rules choosing the optimal location for installation air conditioner

The reason for the formation of ice may be a discrepancy between the type of air conditioner and the operating conditions, for example, starting the device in the cold season without special protection from low temperatures

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

Icing of the pipes of a device disconnected from the network indicates improper installation or a refrigerant leak through depressurized communications.

Cleaning the device from ice helps to resolve the problem. You can do this at home by first disconnecting the device from the power supply.

E4 indicates compressor overheating. This is caused by an internal radiator clogged with dirt, dust and fumes. It does not provide high-quality heat removal, 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 added during refilling, the system will work with overload, and the compressor will begin to actively heat up. To clarify this point, you will need to call a specialist. He will check the amount of coolant in the system and remove any excess.

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

The capillary tube clogged with dirt and dust causes the compressor to overheat.It needs to be replaced with a new one, and the engine will start working normally and without voltage.

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

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

We recommend that you familiarize yourself with the features compressor diagnostics, main malfunctions and ways to eliminate them.

It is recommended to use special products to clean air conditioners. They quickly remove all types of contaminants, disinfect the surface, and do not cause damage to metal parts, housing and radiator

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

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

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

If nothing has changed, you must:

• make sure that the remote control is within the signal coverage area;
• replace the batteries with new ones;
• Check the remote control for signs of damage.

When troubleshooting, you should try to turn on the air conditioner through the buttons on the case. If the device works, then there is a problem with the remote control. The photodetector may have broken down, or the wiring may have broken. In this case, you will need to resolder the failed radio elements on the microcircuit and restore the broken wires. Or replace all broken parts with working 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 continue to use the air conditioner. But a universal model may not support a number of options available in advanced air conditioner models

E8 indicates an overload of the electric motor of the indoor unit. Fixing such breakdowns is not for the home handyman. This is best handled by qualified specialists who are professionally involved in the repair of climate control equipment.

What do F-type error codes mean?

F0 indicates that the temperature sensor in the room, which sets the operating mode of the compressor, has turned off.

For more detailed diagnostics, you need 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 meet the standard, the part will need to be replaced.

An ohmmeter or multimeter is required to measure the resistance of the room air temperature sensor. The obtained indicators must be compared 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 disconnected. This sensor monitors the temperature of the evaporator.If it drops below zero, it turns off the compressor to prevent icing of the evaporator.

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

F2 indicates that the temperature sensor of the heat exchanger of the external module is disconnected, F3 - to stop the operation of the outdoor temperature sensor, F4 — to turn off the temperature sensor on the air supply.

Code F6, blinking 12 times, indicates a malfunction in the outside air temperature sensor. In all of the above options, you need to check the quality of the connection between the sensors and the control board. If the connection is broken, restore it. Or replace faulty sensors with new ones.

Letter abbreviation FF indicates a disruption in the power supply. In this case, you need to check whether there is electricity in the network itself, whether it is working properly socket, and what is the condition of the connecting cable.

Code F11flashing 6 times indicates that the mains voltage is abnormal. When it is too low, the air conditioner cannot operate at full capacity. When too high, there is a risk of short circuits, fuses and electronic boards.

If this situation occurs regularly, you should think about buying a household appliance to stabilize the voltage or assemble the stabilizer yourself. It will equalize the voltage in the network and protect equipment from burnout.

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

Code F11flashing 19 times indicates a malfunction of the control board.The reason here lies in overload, sudden changes in mains voltage or a blown fuse.

To find out, you need to conduct a full diagnostics 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, it is necessary to replace the board with a new one.

Code F12, blinking once, indicates that a short circuit has occurred in the headboard. The reason is a surge in network voltage, overloads and the influence of natural phenomena (lightning, etc.). If the fuse is blown, after replacing it, the air conditioner will operate normally again.

If the board itself is seriously damaged, you will need to invite a specialist to assess the level of damage and the feasibility of repair. You may need to replace the board with a new one. Then the process of restoring climate control equipment will be delayed, since you will need to wait for the delivery of the original part.

Universal repair recommendations

Before starting work, disconnect the air conditioner from the electrical network.

Carefully read the instructions supplied with the device. This will save time searching for twist-out fasteners and plastic latches that hold the external elements of the air conditioner housing.

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

Film the sequence of disassembling the inside of the block on a smartphone. This will help you assemble the unit correctly and ensure that all parts are in place. Do not make changes to the device's operating circuit.For replacement, use only original parts or equivalents approved by the manufacturer.

Don't carry out repairs in a hurry. Set aside at least 1-2 free hours for this activity. Check if you have the necessary tools.

You will definitely need:

• slotted (flat) and Phillips screwdrivers of small and medium sizes;
• wire cutters;
• pliers;
• multimeter;
• wire for creating jumpers.

Depending on the model, wrenches and hex keys may be required. If most of the tools are not available, think carefully about whether it is worth undertaking repairs.

Conclusions and useful video on the topic

How to properly clean your air conditioner at home:

How to independently diagnose an air conditioner - recommendations for novice technicians:

The Haier split system is a complex unit with many additional functions. If you strictly follow the operating rules and timely replacement of consumables, it works for a long time and without failures. The manufacturer provides a proprietary warranty for the equipment. While it is in effect, it is not recommended to repair the device yourself.

When the warranty has expired, minor damage can be repaired with your own hands, and restoring the functionality of power units and electronic boards can be entrusted to professionals specializing in the maintenance of climate control equipment..

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