Why the split system does not cool well: an overview of frequent breakdowns and methods for fixing them

Problems with vibration dampers (elastic bands, gaskets)

During installation, the outdoor unit is screwed to the brackets on which it stands. Special rubber gaskets must be installed between them. They dampen the vibration of the outdoor unit.

Some masters do not install vibration dampers.There are many reasons: they forgot, they ran out of gaskets, “they are not needed here”. Poor quality rubber gaskets crack over time They harden and may fall apart.

If there are no vibration dampers, and the mounting bolts of the outdoor unit are loose, it will start to buzz. It may even be that there will be more noise inside the apartment than outside!

If the bolts securing the unit to the brackets are well screwed, the vibration will be transmitted to the wall. In some cases, the wall will act as a resonator and will hum like a speaker membrane.

The solution to the problem is simple - install rubber gaskets under the bolts. But do not put the cheapest ones, so as not to change them every two or three years. The price difference is small, but why would you do the extra work?

Place of installation of vibration dampers for the outdoor unit.

What to do

Recommendations are as follows:

1. Curtain the windows and close the blinds, do not let the sunlight enter the room too much, this should ensure less heating of the air in the room and the correct operation of the air conditioner.
2. Close windows and doors and make sure there are no hidden gaps or openings in them. So you will ensure that there is no influx of warm air.
3. Try to turn off the device from the remote control and try to deal with the control panel, it may be faulty and you should call the wizard.

If you cannot solve the problem yourself, call the service center, explain your problem, indicating all possible malfunctions and your assumptions. You will be sent a specialist who understands the device of the air conditioner, so you will save strength and nerves. Do-it-yourself troubleshooting of the air conditioner can lead to its breakdown.

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What can be done if the climate device does not turn on?

If such techniques do not bring a positive result, then you still have to seek help from the service center employees, since we can talk about a fairly serious breakdown, the elimination of which will require experience and special repair equipment.

It's also a good idea to check the batteries in the remote, as they tend to drain much faster in hot weather.

And for what other reasons can climate equipment fail? In some cases, the inefficient operation of the air conditioner may be due to the presence of other electrical appliances nearby: a stove, a toaster, a kettle, etc. And in this case, it is quite simple to exclude independent repair of split systems - we eliminate such an unsafe neighborhood and allocate a separate power source for climate control equipment.

Many models of modern split systems can independently eliminate the problem with drafts using a very useful function - self-oscillation of blinds. Being in a horizontal position, the blinds very quickly neutralize drafts, while maintaining a fresh breeze that is pleasant for the body and safe for health.

To avoid all these minor malfunctions, it is necessary to carry out repairs and maintenance of split systems in a timely and competent manner. And doing it yourself is not difficult, as it is done very simply.

Possible causes of malfunctions

An air conditioner, as a complex technical device, requires special care and conditions for its normal functioning. If you do not check for frost on the grill or the operation of the fan, they may suddenly fail.Let's take a closer look at the reasons why the air conditioner does not heat.

Little time

The main function of an air conditioner with a split system is to cool the air in the room to an acceptable state, and heating and warm air are additional functions. Air conditioning systems will not be able to replace the usual battery. The heating of the air in the air conditioner occurs at the time of pumping freon in the opposite direction. Such procedures in technology require pressure equalization at the same level.

The owners of the devices want to get an instant result, and when it is not there, they attribute everything to a malfunction of the device. This problem is solved simply: after turning it on, you should wait 10-15 minutes, let the device warm up. If the appliance does not heat up after this time, a malfunction may be suspected.

Low room temperature

Each air conditioner can operate at certain minimum temperatures specified in the documents. For inverter-type models, this temperature ranges from -25 to -15 degrees, for simple models from -5 to +5, carefully read the instructions. The documents for the technique indicate the maximum temperature in the room that the machine can create.

But manufacturers do not always accurately indicate the temperature and are a little tricky. For example, it is indicated that the device can operate at -25 degrees, and warm the air up to +28 degrees. In fact, the lower the degree outside, the lower the temperature the device will be able to heat the room and these +28 degrees will turn into +16.

freon leak

The most common problem right now. For the correct operation of the device, a special gas is needed - freon. If it is not enough, the air conditioner does not blow warm air.Freon leaves through a microcrack in the frame and does not return.

In this situation, you should contact the company where the air conditioner was ordered. You will be cleaned evaporators and refuel freon or completely change the equipment.

Pollution and blockages

Freon is mixed with compressor oil and moved between blocks. With bad oil, sediment forms, which clogs the system and narrows the tubes. There are many freon manufacturers and not all of them guarantee product quality, so the refrigerant may contain water, which forms ice blockages and plugs.

Valve failure

When the device does not turn on the heating mode, the three-way valve may break, which allows you to smoothly switch between operating modes. You need to replace it and the device will work again in good condition.

suspicious noise

There can be several reasons why the air conditioner is buzzing. Perhaps this model is not designed for such increased loads, so the hum indicates compressor wear.

Also, if the outdoor unit is not cleaned of dirt in time, then dust and dirt will unevenly settle on it. This is especially true for fan blades. Due to pollution, they become unbalanced and prone to breakage, so a constant hum is heard. You just need to clean the fan or replace it with a new one.

If a clicking sound is heard, this indicates a malfunction of the automation or internal parts.

Gurgling indicates that air has entered the drainage system, and condensate is not draining.

The way out is to straighten the tube at the right angle to free the system from air.

Sometimes the hum occurs due to poorly fixed parts. It is necessary to tighten all parts, fasteners and connections more tightly.

Why is the air conditioner not heating?

Air conditioner does not defrost

But what if the heating function in the air conditioner is not available for any reason?

Consider several factors that can affect its operation:

1. Very coldy. An electrical appliance may simply not be designed for space heating under such weather conditions. This is a common reason why the air conditioner does not heat properly. The power of some devices is not designed for such a strong temperature difference, so the device is not able to heat the air in the room by more than 3 degrees. But provided that it is from 0 to +5 ° C outside, the device heats the air with the highest productivity.

1. Heat is not supplied when there is airflow from the indoor unit. The inflow of air into the room has a temperature similar to the street. There is clearly a problem with the compressor. There may be a breakdown in the four-way valve, which is the responsible element for changing the operating mode of the air conditioner. If there is damage, it cannot ensure the switching of the operating modes of the device from summer to winter. In this case, the compressor will need to be replaced or repaired.

1. The "defrost" mode is violated or absent. Under such circumstances, the appliance still operates in normal air cooling mode. Air supply units are in operation. It doesn't work in heating mode.

Other reasons and ways to fix

Some models of air conditioners are equipped with a heat generating coil, which is installed on the indoor unit of the device. A fan blows warm air around the room.When the heating of the atmosphere is poor, it is worth checking the device for problems with the supply of the spiral or with the fan of the indoor unit.

Some problems of this nature can be eliminated by the consumer on their own. The problem may be hiding in the simple freezing of condensate in the internal tubes of the electrical appliance, which leads to their clogging and obstruction.

If it’s already cold outside, then temporarily turning off the device will not help. The frost inside the tube will not melt due to negative temperatures outside. It remains to wait for warming, or you can try to start the heating wire that runs along these tubes. This will help if there are no problems with the external unit.

Possible causes of condensation:

1. Unprofessional installation work that violated the integrity and operation of the air conditioner.
2. The presence of a manufacturing defect in the device.
3. The presence of microcracks through which the liquid enters the device. Here, the possibility of damage to components mechanically or due to improper operating conditions is not ruled out.

Under such circumstances, it is not possible to warm up the circuit. But if you try to switch the modes from heating to cooling, and after a while in the reverse order, the problem may be fixed. It may take several such alternate switching so that the cork melts and slides out of the tube, freeing the passage.

Switching the air conditioner from cooling to heating

Due to the formation of cracks, other damage with the appearance of microscopic gaps, a pressure drop in the freon circuit may occur. This is possible due to the loss of a small amount of refrigerant.Under such circumstances, the air conditioner will not cool and heat well.

The problem with refueling with freon will be eliminated by the service departments involved in maintenance. Actions are performed through the fittings pipe, located in the external block outside the building. Specialists use the collector for nitriding, evacuation and refueling.

But you can determine such a need yourself. To do this, you need to find and examine the scale of the unit, which indicates the actual indicators of the presence of freon. Comparing them with those recommended according to the device passport, they identify the need for refueling.

Masters use special thermometers to measure freon vapor at the entrance to the compressor. And the collector readings will indicate digital data on the state of pressure. The presence of a temperature difference of more than 8°C between these two figures indicates a need for refilling.

Why is the air conditioner not heating?

Air conditioner does not defrost

But what if the heating function in the air conditioner is not available for any reason?

Consider several factors that can affect its operation:

1. Very coldy. An electrical appliance may simply not be designed for space heating under such weather conditions. This is a common reason why the air conditioner does not heat properly. The power of some devices is not designed for such a strong temperature difference, so the device is not able to heat the air in the room by more than 3 degrees. But provided that it is from 0 to +5 ° C outside, the device heats the air with the highest productivity.

1. Heat is not supplied when there is airflow from the indoor unit. The inflow of air into the room has a temperature similar to the street. There is clearly a problem with the compressor.There may be a breakdown in the four-way valve, which is the responsible element for changing the operating mode of the air conditioner. If there is damage, it cannot ensure the switching of the operating modes of the device from summer to winter. In this case, the compressor will need to be replaced or repaired.

1. The "defrost" mode is violated or absent. Under such circumstances, the appliance still operates in normal air cooling mode. Air supply units are in operation. It doesn't work in heating mode.

Other reasons and ways to fix

Some models of air conditioners are equipped with a heat generating coil, which is installed on the indoor unit of the device. A fan blows warm air around the room. When the heating of the atmosphere is poor, it is worth checking the device for problems with the supply of the spiral or with the fan of the indoor unit.

Some problems of this nature can be eliminated by the consumer on their own. The problem may be hiding in the simple freezing of condensate in the internal tubes of the electrical appliance, which leads to their clogging and obstruction.

If it’s already cold outside, then temporarily turning off the device will not help. The frost inside the tube will not melt due to negative temperatures outside. It remains to wait for warming, or you can try to start the heating wire that runs along these tubes. This will help if there are no problems with the external unit.

Possible causes of condensation:

1. Unprofessional installation work that violated the integrity and operation of the air conditioner.
2. The presence of a manufacturing defect in the device.
3. The presence of microcracks through which the liquid enters the device.Here, the possibility of damage to components mechanically or due to improper operating conditions is not ruled out.

Under such circumstances, it is not possible to warm up the circuit. But if you try to switch the modes from heating to cooling, and after a while in the reverse order, the problem may be fixed. It may take several such alternate switching so that the cork melts and slides out of the tube, freeing the passage.

Switching the air conditioner from cooling to heating

Due to the formation of cracks, other damage with the appearance of microscopic gaps, a pressure drop in the freon circuit may occur. This is possible due to the loss of a small amount of refrigerant. Under such circumstances, the air conditioner will not cool and heat well.

The problem with refueling with freon will be eliminated by the service departments involved in maintenance. Actions are performed through the fittings pipe, located in the external block outside the building. Specialists use the collector for nitriding, evacuation and refueling.

But you can determine such a need yourself. To do this, you need to find and examine the scale of the unit, which indicates the actual indicators of the presence of freon. Comparing them with those recommended according to the device passport, they identify the need for refueling.

Masters use special thermometers to measure freon vapor at the entrance to the compressor. And the collector readings will indicate digital data on the state of pressure. The presence of a temperature difference of more than 8°C between these two figures indicates a need for refilling.

Possible reasons

When you buy an air conditioner or split system, it is best to find out how it works, what kind of compressor it has, how well it cools, what problems can occur and how to monitor the normal operation of home appliances. If the system does not cool, you need to be careful and remember the safety rules:

1. Do not disassemble the air conditioner or split system yourself, because this can cause more serious damage.
2. No need to knock on the device, hoping that it will work like that.
3. Do not press hard on the power button or press it several times in a row if you see that the air conditioner has stopped turning on.

It happens that household appliances stop working because of some little thing, and not at all because of a compressor breakdown, and then everything is easy to fix. It is better to study the instructions for the technique well. In it you will find the solution to your problem.

Remote control problem

The first reason why the air conditioner does not work is the carelessness of its owner.

1. Check your remote control. It may be that the batteries are simply inserted incorrectly. Then change them so that they are in the correct position.
2. It is possible that the batteries in the remote control are simply dead or exhausted. Then they need to be replaced with new ones. It is good if you have the same spare ones at home or your batteries can be recharged.
3. If you checked and replaced the batteries, and the air conditioner still does not cool, this is a problem with the remote control board. Then you need a master who can replace it.

Sometimes buying a new remote control is quite difficult. It may not be in the store, then you have to order it in the store.You can purchase a universal remote control. This unit will fit most air conditioner models.

No power supply

Sometimes the problem is a little more serious. The power supply may be badly connected to the indoor or outdoor unit. The reason why the air conditioner does not cool the room may be due to a power outage. Problems may be in the outlet: it does not have power. Check this by inserting any other device into it. Or the system cord is not plugged in.

Board failure

Sometimes the control board of the indoor unit can break. Then you need to replace the board or repair the old one. This is pretty easy to do. When repairing the board, the indoor unit is not removed. It can take up to two hours to repair or replace it.

Mode change

At the time of the onset of autumn cold weather, there is a desire to use the air conditioner as a heater. To start normal work in such a situation, the technique needs a little more time. It takes time for the pressure to equalize, so you just need to wait longer.

Start protection mode

The air conditioner may also not work due to the protection against switching on. It is in some devices and works with incorrect actions.

You can install the so-called winter kit. This will remove the restrictions. Then the system will blow in almost any weather.
3 id="oshibka-ili-taymer">Error or timer

When the air conditioner stops cooling, an error code may be displayed on it. You have to read the instructions what does this error meanand how to remove it. But, if you can’t cope with it, you need to contact the master. You might just have set the timer incorrectly. This problem can also be dealt with by reading the instructions.

Warranty coverage

In a situation where the equipment was purchased a few months ago, the warranty period continues. At this time, you can call the master to the house, and you can be sure that you will not damage anything yourself. Repairs can be made by the company that installed the climate control equipment.

If the warranty has not expired, you can use the services of a wizard

Step-by-step disassembly of the split system

Removing the overeating lid

In this case, unscrew the screws located under the decorative plugs

Carefully push and lift the plug up

We unscrew the scoreboard and the screws holding the front wall

Removing the front cover of the air conditioner

We remove the butterfly valve by first disconnecting the engine power connector on the power supply and the condensate drain hose

Next, disassemble in order by unscrewing the bolts securing the protective cover of the control unit

Loosen the fan motor mounting bolts.

On the axis of the engine there is a stopper bolt, which must also be unscrewed

On the opposite side, remove the axle plug and remove the impeller

The impeller must be thoroughly washed with cleaning agents and a brush.

Reassemble in reverse order.

After assembly, turn on and check for smooth operation of the impeller and the efficiency of cold generation by installing a thermometer in the room.

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Cracking fan (impeller)

Fan blades can crack due to mechanical damage or simply over time. You can determine this visually, the problem is characterized by a crack or clicks. This sound occurs due to the fact that in the place of the crack, two edges rub against each other. Solving the issue is easy - buy a new fan and replace it.

Sometimes there is a not particularly loud crack, which almost merges into a rumble. Most likely a problem with the fan bearing. Remove the impeller and old bearing. Choose the same size and install instead of the old one.

During heating operation, ice may form on the radiator of the outdoor unit. There may be several reasons:

• Outdoor temperatures are low and humidity is high;
• The radiator is dirty;
• Not enough freon in the system;
• After complete freezing on the outside, the ice melted, but remained inside;
• There is a crack in the line through which the refrigerant exits.

Try to solve the problem yourself. First, turn off the air conditioner and wait until the ice melts (you can speed up the process with a regular hair dryer). Clean it from dirt (read more about this in the article "How to clean air conditioner at home - step-by-step instruction")

Change the mode of operation of the air conditioner - lower the temperature by 1-3 degrees. If possible, decrease the blower speed by one point. If frost forms on the radiator, you will have to call the master. You can find a good air conditioner with the help of the PROFI.RU specialist search service.

It happens that the outdoor unit of the air conditioner buzzes when heated, but when cooled it works fine. Most likely the problem is the big difference between the temperature in the house and on the street. There are three options for resolving the issue:

1. Insulate the outdoor unit;
2. Reduce heating temperature;
3. Install a winter kit with outdoor unit heating.

Frozen outdoor unit of the air conditioner. When the ice outside melts, some of it will stay on the radiator for a long time.

Checking the performance of the air conditioner

The main criterion confirming that the air conditioner is operating normally is the temperature of the air flow blown out of the indoor unit. As a rule, at the outlet of the evaporator, the temperature of the air is in the range from 6 to 14°C. The only exceptions are inverter-type air conditioners, in which this value can reach 18 ° C. In addition, the amount of heat load on the air conditioner is determined by the temperature of the air masses in the room and outside the window.

It is important to know that split systems made in Europe or Japan have higher output temperatures than those brought from China and other Asian countries.

Express method for calculating the heat load on the air conditioner

There are several methods by which you can determine the amount of heat load on a split system, which is supposed to be installed in any room. For example, one of the simplified formulas for heat load calculation a specific room looks like this:

Q=V*C*K/860

where:

• Q - the value of the heat load of the room (kW / h);
• V is the volume of the room (m3);
• C is the difference between the temperature outside and the temperature needed to maintain it indoors (°С);
• K is the heat loss coefficient of the room.

However, in practice, experts recommend that inexperienced consumers use the express method for determining the heat load of a room. In this case, the calculation is carried out according to the formula:

Q \u003d S * Qav

where:

• Q - the value of the heat load of the room (kW / h);
• S - area of ​​​​the room (sq. m.);
• Qav is the average heat load, which is 100 W/m2 for ordinary (typical) rooms, and 120 W/m2 for rooms with a large glazing area or with windows facing the sunny side.

Measuring the degree of air cooling

You can verify that the air conditioner is working by measuring the temperature difference at its inlet and outlet. In this case, the thermometer needs to determine the temperature indicators:

• incoming airflow over the indoor unit;
• air stream coming out of the open curtain.

If the measured temperature difference is between 8 and 12°C (or more), this means that the unit is operating normally. Otherwise, cooling problems may occur.

The main components of the equipment

It will not work to fix the climate equipment on your own, without knowing all its elements.

We offer to understand what a split system consists of:

• compressor and condenser block (outdoor);
• evaporator unit (indoor unit).

Each of the blocks contains certain details. The external part of the equipment includes: compressor, condenser, four-way valve, control board, fan, filter, housing.

The internal part of the equipment is mounted indoors. And the indoor unit consists of: front panel, filters (coarse and fine), evaporator, display panel, fan, condensate pan, control board.

Air conditioners have a lot of electronics. It makes it possible to control the process of temperature control. The boards consist of several dozen electronic components, which are also sensitive to contamination.

Also in the equipment there is a system of copper tubes. They carry the refrigerant Freon. During the operation of the equipment, it is in two states: gaseous and liquid. Therefore, the tubes differ in diameter.

Diagnosing and Troubleshooting Car Air Conditioning

The easiest way to determine the performance of an air conditioner installed in a car is to feel it - by the temperature difference between the thin tube of the supercharger entering the condenser and the thick pipe leaving the compressor. For a running air conditioning system, the supercharger tube should be hot, and the thick pipe should be cold. If there is no temperature difference between them, then the air conditioner in the car is not working. And cold air from the vents will not enter the passenger compartment of the car.

Causes of a malfunctioning car air conditioner can be:

• violation of the tightness of the elements of the system;
• contamination of the air conditioner radiator (condenser) or the entire device as a whole;
• mechanical breakdowns of system parts (rubber pipes, brass pipes, etc.);
• compressor failure.

An air conditioner is a fairly complex device that cannot be repaired on its own. With your own hands, you can only check its performance. And in order to clean the air conditioning system in a car or fill it with freon, you need to have special equipment at hand. The only way to keep your car air conditioner from breaking down is to maintain it regularly and thoroughly.

Frequent problems

Split systems are becoming more popular every day. They allow you to consistently keep the optimum air temperature in the house, they are affordable and you can use them in any season. The system does not break down so often, but since such devices are still considered an innovation, in the event of a malfunction, the owners do not know what to do.

A small educational program related to the operation of the system will not be superfluous. The split system itself is represented by an outdoor condensing unit, as well as an evaporative unit, which is considered an indoor unit. The external part of the split system includes a compressor, a condenser, a fan, a control board, as well as a four-way valve, a filter and a housing. The indoor unit includes a front panel, filters, display panels, an evaporator, a fan, a control board, and a condensate pan.

During operation, freon is in two states - liquid and gaseous, therefore copper tubes are represented by several diameters.

Consider the most common malfunctions in the operation of the presented mechanism.

• The split system does not turn on / does not start. It's most likely a defective power cable. If you are convinced that there is voltage in the network, then the breakdown should be sought in the mains socket, mains plug or cable, or in the power connectors (located on the control board). Sometimes it happens that the voltage in the network is not enough for the device to work. If the split system does not work, perhaps there has been an overload of the intra-house network.
• Dripping water. It's probably a clogged drain pipe. If the blockage is of a mechanical type, then this is due to dirt that has clogged into the tubes. If the blockage is climatic, then it can be in winter if certain parts of the pipeline freeze. Ice plugs are dangerous and unlikely, but still a possible cause of blockage.
• Bad smell. This internal problem indicates a clogged filter. If the indoor unit's fan emits a repulsive odor, it may be an indicator of bacteria growing in the unit.Sometimes washing the filter does not help, you need to order a comprehensive service.
• The compressor is not working. This breakdown has several options for occurrence. The compressor itself may fail, the thermostat may break. If the compressor specifically broke down, then it will not be possible to fix it on your own. Only the jammed shaft of the engine can be repaired relatively easily.
• Turns off quickly or immediately. If the split system, during outwardly normal operation, began to quickly turn off, this means that one of the temperature sensors is out of order. You can check the operation of the sensors with a multimeter. Sensor repairs are inexpensive, so the problem is usually fixed quickly.

There are also breakdowns of the remote control - in this case, you need to contact the service department. If the device is still under warranty, the remote control will be replaced. If the warranty has expired, they will tell you where you can repair it or buy a new one.

If the split system seems to have some problems, if you do not feel that it is working at full capacity, conduct an external inspection. Call the experts if necessary. You can remember if something happened recently that could disable the equipment.

Equipment diagnostics: is the split system really faulty?

Before you start looking for problems in the operation of the device, you should make sure that the high temperature is not associated with external factors that do not depend on the technique:

Work period. In the hot season, you want the room to become less stuffy as soon as possible, so it's easy to forget that in order to cool the room, the air conditioner needs from 10 to 20 minutes.The time it takes for a room to become cool depends on factors such as the size of the room, the temperature outside and inside the house, the power of the equipment;

Compliance with the power of equipment and the size of the room

When choosing a device, it is important to consider its performance in relation to the room in which it will be installed. This rule is often neglected when purchasing equipment for a large room designed to cool a small room.

Moreover, the discrepancy in power often becomes noticeable not immediately, but only when especially hot days come;

Lack of isolation. The equipment will not be able to reduce the temperature to low values ​​​​if the room has an influx of warm air from the street. Open windows and doors, as well as working ventilation systems, impose an impossible task on the device - as soon as it has time to cool the air, it is replaced by a new, warm one;

Obstacles in the path of air masses. Curtains or blinds, partially retracted onto the split system and furniture standing next to it, can disrupt the circulation of air masses in the room, as a result preventing it from cooling.

After making sure that none of the external factors affects the fact that the room does not get cool, it is worth starting the diagnosis. It is carried out very simply: it is worth taking a thermometer and measuring the air temperature at the inlet and outlet of the device.

The inlet is measured at the air intake grilles. To do this, you can put a thermometer on the equipment.

Output - in the air stream coming out of the blinds.

It is important not to place the thermometer in the air conditioner, otherwise it will fall into the fan blades, which will lead to equipment failure.It is not necessary to use a mercury thermometer for measurement, if the procedure fails, the procedure can lead to mercury vapor poisoning. The normal difference between the temperatures at the inlet and outlet of the device is between 7 and 15 ° C

In situations where the gap between them is less than the declared figures, it is worth looking for the cause of the malfunction in the equipment itself.

The normal difference between the inlet and outlet temperatures of the device is between 7 and 15°C. In situations where the gap between them is less than the declared figures, it is worth looking for the cause of the malfunction in the equipment itself.

suspicious noise

There can be several reasons why the air conditioner is buzzing. Perhaps this model is not designed for such increased loads, so the hum indicates compressor wear.

Also, if the outdoor unit is not cleaned of dirt in time, then dust and dirt will unevenly settle on it. This is especially true for fan blades. Due to pollution, they become unbalanced and prone to breakage, so a constant hum is heard. You just need to clean the fan or replace it with a new one.

If a clicking sound is heard, this indicates a malfunction of the automation or internal parts.

Gurgling indicates that air has entered the drainage system, and condensate is not draining.

The way out is to straighten the tube at the right angle to free the system from air.

Sometimes the hum occurs due to poorly fixed parts. It is necessary to tighten all parts, fasteners and connections more tightly.

Troubleshooting

But how to correctly establish the presence of such a problem, if it seems that the air conditioner does not cool well? Appropriate measurements must be made.To solve this problem, the temperature difference at the inlet/outlet of the cooling system is estimated. To do this, you can use a conventional thermometer. The main thing in the process of taking measurements is to make sure that it does not get into the fan drum.

The temperature of the incoming air is measured by placing a thermometer above the indoor unit, and blown out, where the flow is near the open curtain. If the set temperature difference reaches 8-12 degrees and above, then the operation of the device is optimal. If such a difference is less, then it can be diagnosed that the air conditioner does not cool, the reasons must be sought in the device itself.

First of all, it is worth noting that the installation and installation of split systems should be carried out by qualified specialists. If a malfunction occurs during the warranty period, it is better to immediately call the installers. If the warranty has expired, you can try to repair it yourself.

As a rule, the poor performance of the air conditioner for cooling the room is accompanied by various factors, which include the following points.