Why fail conditioners

Split or wall air conditioning in the house is now almost everyone has summer resident. Cooling the air in the room was especially true in the current abnormally hot summer. Meanwhile, anyone who is just going to be installed or already has air conditioning, it is necessary to know what kind of problems you may encounter during its operation. In our paper, we study why fail even expensive and high-quality split-system.

In fact, the reasons for the failure of a modern high-tech equipment can be set. Air conditioning - a complicated thing, and sometimes whimsical. He does not like a dusty environment, excessive temperature changes (except after special preparation) and careless attitude. Meanwhile, as recognized repairman "vetroduev", users often neglect the simplest rules of operation. Of course, it happens factory and "shoals" and faults during installation, but in most cases the damage can be avoided in advance.

Equipment

To begin with let us recall briefly the principles of the modern air conditioner. Decades, electronic devices grows, "twists" and additional options, and invented in the 19th century and embodied in the early 20th idea is almost unchanged. Its essence is that the refrigerant unit (usually a Freon R410, but in the latest models of air conditioners already encountered and R-32, it is less impact on the environment and less viscous) alternately changes its physical state - that is condensed, then back It turns into gas. Depending on the state of the refrigerant unit heat extracted or evaporates. Actually, all of the air conditioning unit is aimed at to bring the first Freon to a boil, and then - to the cooling.

As a rule, the "filling" of any air conditioner consists of several key components ( "bells and whistles" do not count):

• Compressor. It compresses the gas, increasing its pressure (and therefore temperature), and circulates through the system.
• Throttle. He, on the contrary, relieve the pressure of the refrigerant unit - it is necessary to ensure that the evaporation starts.
• Capacitor. It turns out Freon gas to liquid. It operates essentially as a radiator in a car.
• Evaporator. Component with a "reverse" capacitor effect.
• Fan - cooled the entire air conditioning system is not allowing it to overheat.
• The connecting pipe which circulates the refrigerant unit. they are usually made of copper (preferably), but there are also aluminum.
• Drainage. Tubes through which excessive moisture resulting from the operation of the unit is derived from the system (most often simply flows to the ground).

Also in the air conditioning kit includes a variety of couplings, filters (there are several types - coal, electrostatic, bacterial), louvers for controlling the air flow and other details. For example, the control board in modern models inverter or display panel.

Depending on the purpose and complexity of the air conditioning unit is divided into one-piece, split and multi-split systems, window, floor and wall, air handling, recycling and others. We will talk about the most traditional model - wall split system for the home. Everyone has seen similar. The system consists of two parts. The indoor unit is in place (usually mounted on a wall) enclosed therein an evaporator, filter, fan and all electronics. External imposed on "the street". Both units are connected "highway" - a set of necessary wires and tubes.

subtleties installation

According to the head of the Rostov company "Split center" Daniel Dosayeva, often with air conditioning problems begin with the installation. For optimum performance, it is necessary that the track was installed absolutely airtight. If it does not, then Freon gradually begins to come out of the system.

Daniel Dosayev (Director of "Split center"):

During installation, the track may appear microcracks, for example, twisted track, or was unsealed rolling. And all freon goes. The air conditioner can work for a month or two or even more, but then you put 18 degrees and it blows warm air. Refueling will not help here, it is a temporary measure. Typically, the track change. And the person who decided to save on the installation, as a result pays twice.

The weakest point of the installation - this is the road connection with blocks. The track is fixed by rolling, and if it is properly done, the leak can not be expected from the system, adds repairer and maintenance of split systems and air conditioners "204-004 Repair Service" Alexander Frost.

Oleksandr Moroz (Master on repair and maintenance of split systems and air conditioners "204-004 Repair Services")

Just cut up the phone and make the rolling of - it is not enough. It is also necessary to remove the chamfer on the inside and outside of the tube, to avoid burrs. Still, many installers do not use a vacuum vessel, because it is expensive. And for good reason. If before introducing the refrigerant unit not to pump air from the system, the freon is mixed with it, and the condensate formed in the system. And it is badly affects the compressor in a couple of years, the unit may malfunction. This is the same as the motor of the machine to add water into the oil. The client does not recognize the error. But after a while the split "will fall."

Due to improper installation and began to "act up" air conditioning in our User Salkazanoff. The problem was that at a temperature of + 5 degrees outside the unit, transferred to heating, blowing warm air is not all the time, and only 20-30 minutes and then switched off. After a couple of tens of minutes, he started to work again, and the situation is repeated.

FORUMHOUSE readers, is engaged in repair and maintenance of split systems, suggested that it is the lack of freon. In particular, the user TASHKOV He advised:

TASHKOV (User FORUMHOUSE):

Demand to stop the leak, not just refueling! Most often it is due to rolling under the indoor unit. At +5 must scald, Mom do not worry, non-stop!

Leaky rolling - is not the only mistake that allow installers of air conditioning. An important point - the observance of the required length and angle of inclination of the road. Failure to comply with the technology will lead to unpleasant consequences: from stains before once again the failure of the compressor.

Daniel Dosayev:

The main thing - is drainage. Usually it is done by gravity and at a slant. It is important to not violate this condition. If the drain pipe is not located on an incline, condensation will drip into the room. In turn, the slope of the pipes is not required for Freon. But it is important for them the path length, ie the distance between the outer and inner unit. If you exceed the norm, then the system will not work effectively. Require refueling Freon, and the compressor will pump not.

In general, sums up how our readers MicluchoMaclay, Subtleties when installing the air conditioner a lot, from the prefilling route Freon factory and ending with the incompatibility of CFCs for specific types of air conditioners.

MicluchoMaclay (User FORUMHOUSE):

You should also consider the need for a procedure such as diagnostics (oil acidity, pressure, cleaning the outdoor unit, etc.). Well, on technological cards - and even vakkumirovanie and diagnose leaks.

No need to "take place" on the cheap price, which offer the company - this is the main advice from the professionals.

Oleksandr Moroz:

Cost of installation depends on the capacity of the split and on the length of the track. But, for example, in the same Rostov-on-Don, it can not cost less than 3500 rubles for the seventh model. All that is cheaper, it will be worse. Installers will save on components, for example, not to take copper and aluminum wire, drainage is not clear whose. Therefore, here I mean, even if not immediately, but always pays twice.

Exploitation

Incorrect or careless operation - one reason why fail even good split system. In the opinion of the masters, the majority of consumers neglect even the elementary rules. One of them - a seasonally diagnosis of air conditioner status, especially when changing from season to season. It includes technological refueling unit, its cleaning, pressure testing.

Oleksandr Moroz:

Due to the fact that the system is going to rolling, on nuts, in winter in cold metal narrows. Microcracks appear, there comes the refrigerant unit. Even under ideal installation of a split system leaves 5% of Freon per year. And if three or four years, not to check performance and refuel it, it works at a reduced pressure. Source service decreases, the compressor may break.

Experts explain: if the air conditioner is not "cold", it usually means a leak of Freon or banal (though rather big!) Clogging. Rubbish, dust, poplar fluff, leaves - all this settles in the system.

All you need to do in this situation - it's clean channel. In particular, it is this "operation" has helped our user john kerry "Revive" the seemingly hopeless spoil technique.

john kerry (User FORUMHOUSE):

I then talked about his experiences with the "masters." Summer is not like two kondeya cold, shut down after 5 minutes. Masters: "Older condo, should be changed." And so as long as the direct ukazilovkoy not kept wet vacuum wash outdoor advertising, though the most competent. Conde immediately become new.

We serviced by split systems wealth of experience on the part of their treatment.

Oleksandr Moroz:

All air-conditioned sucked dirt remains inside. Add the condensate get dirt, fungus. Then it all winter living on the ceiling and multiplies. And all these people breathe. Okay, trash. I personally took out repeatedly from the indoor dried mice. They gnaw wires.

Many problems arise when consumers try to "force" the air conditioner do not peculiar to him things. For example, today in the market are often found machines capable of operating not only for cooling but also for heating.

By and large, each air conditioner is able to do so - enough to "push" the compressor to the other side. In heated air conditioners for this action meets the four-way valve. Depending on the mode, it just changes the direction of "the cycle". The cheapest models of splits or at a temperature below zero outside this valve can "get stuck" in one state.

Oleksandr Moroz:

And then in the air conditioning like all works, the pressure is, and no cold. But warm air goes, please! I'm talking to people in such cases: "Now you do not have air-conditioning and a heater!". Repair of the valve is very complicated. I do not recommend to include air conditioning in the "heat". Each unit has its own purpose. The air conditioner must be cooled, and the heat have a heater. Why then sell them? I explain this marketing objectives. Two functions in one, can be more expensive to sell.

Just what the expert says, it happened to forumchanin Mailer. He bought himself a split in the winter sale. Installed it in March, the outside temperature was around + 10-12 degrees. After installing the equipment checked only for heating (not include the cooling in the winter!), Everything worked. Until June did not include air conditioning. And then it happened that.

Mailer (User FORUMHOUSE):

There was heat, try to include, in any mode through three or four minutes the indoor unit quiet clicks and switches on heating. When you try to make a claim installers (explain the problem over the phone) - I rolled valve replacement and perezaleyte refrigerant unit, the four thousand rubles.

Faced with a similar situation, the user VOV691774 decided to radically challenge: vypayal valve and the air conditioning did only "cold". Everything worked like clockwork.

If the consumer is still very keen to use the "double" split, it is better to do it within the indicated temperature, experts advise. Maximum is 7-8 degrees below zero, each model its threshold.

If you need heating at a strong frost, it is better to buy a special air-conditioned, equipped with a set of winter equipment. External drainage pipes and unit therein heated and the condensate in the drain does not freeze.

By the way, similar recommendations and the experts give a relatively conventional air conditioners. It is not necessary to require them to very low temperatures, if the window is, for example, 38 degrees in the shade.

According to Alexander Moroz, the recommended "Extension" between the actual and the desired temperature should be 10-12 degrees.

Oleksandr Moroz:

If you have 35 degrees in the room, no need to require him to do to you 16. He, of course, to do so, but will then overheat, wear out - and will soon fail.

Symptoms and diagnosis

As recognized by the "symptoms" that it broke down in the unit? We've put together for you a whole bunch of "diagnosis" of specialists and our customers for a long time working with the split-systems.

The easiest way, when the unit is going to some small fault in the control electronics. Then the screen displays a digital error code. According to it, the master service center can quickly determine the problem. The problem is that sometimes the code number does not necessarily indicate a real problem, and the whole list of possible malfunctions, it certainly does not cover.

Daniel Dosayev:

The easiest way to understand what a conditioned that something is wrong - it is not when the compressor starts. There must be a certain click when turned on. If not, then the system starts operating, warm air is, but it works only fan. You need a longer replacement of the compressor, it is almost impossible to fix.

Sometimes the air conditioner is turned on normally, but when it starts to buzz strongly. A similar problem described by one of our readers.

Charlatan (User FORUMHOUSE):

I bought air conditioning, but did not immediately checked, as an external unit operates. And that's what it turned out that when the air conditioner, the outdoor unit hums like an old Soviet refrigerator (loud).

According forumchanin TASHKOB, For reasons of noise may be two: the fan and compressor.

Tashkov:

If everything is clear with the fan (bearing and impeller), the compressor complicated. The vibration is transmitted through the pipes and fixing bolts. Somewhere it is not paid or touches the wall or is in resonance with the body panels. Or wall on which it hangs a massive enough - a thin plate or a wooden balcony-aerated concrete.

If instead of a split cold supplies to the room only to warm air, the reasons may be several. A couple of them we have described above (sticky valve "heating" mode, the lack of freon). Another - a failure of the capacitor. Here he writes about this, our reader.

Rerehelp (User FORUMHOUSE):

Split cooled normally in the temperature outside 35 degrees. But after another turn drove warm air. Since the indoor unit filter cleaned recently decided that clogged with dust and fluff external radiator. For the sake of preventing wash it. Has included the split, still drives the warm air. I climbed the stairs to the outdoor unit and not heard, to turn on the compressor, and click when the relay. Called the master service, he changed the condenser and returned in a few minutes.

In general, according to all the same TASHKOBIf the air conditioner is installed a couple of years ago, the problems with the outdoor unit is usually developed in the following "scheme":

• Dirty condenser.
• Poor or no working fan.
• Freon is gone.
• Broke compressor.

If the problem started after the installation, it is likely that the reason is related to the freon compressor or said forumchanin.

Often the owners of air-conditioners are complaining that the air conditioner "hammer without stopping," and installed on the remote temperature is not maintained. This, for example, complained about the forum Sk1ddd.

Sk1ddd (User FORUMHOUSE):

To keep warm, air conditioning has to periodically turn off. It feels like temperature sensor live their lives.

According FORUHOUSE reader Michael KuprikovIn this case, there are two versions of events. First, the temperature sensor in the air conditioner is broken. To verify this, he advises to simulate the room cooler. To do this, either open the window in the room during the cold season and wait until the thermometer drops to +14 degrees or open the indoor unit, to find the temperature sensor and to lean to it from ice freezer.

Michael Kuprikov (User FORUMHOUSE):

In this air conditioner must be set to cool (not automatic, but it is cool), and turn it on. Compressor after some time has to be disconnected (it shows visually that the fan of the outdoor unit will stop, and more his hand on the outdoor unit, you will feel the vibration of the body has stopped), and the indoor fan will continue work.

If it does not, it means that the sensor is faulty, sums up the master.

If the compressor stops, the reason is different. Option two: the problem is the user.

Michael Kuprikov:

Discomfort constant cold may be associated with the following factors:

• On the remote control is set too low constant temperature, which can never be achieved in this area.
• Unfortunate location of the indoor unit in the room (is closer to three meters from the permanent location of people, the flow of cooling air is directed to the person). In this case, you need to use a reflector or to make a permutation in the room or move the indoor unit to another location.

Finally, the air conditioner may not run. This happened with the air conditioning user Keparik.

Keparik (User FORUMHOUSE):

Split worked fine until recently. A couple of weeks ago it was made prevention - purified inner block from dust, washed drainage tube, washed cell block external radiator. Mode of operation of the system "22 at the very low speed." Today condo stopped working (enabled / disabled). Inspection outlets showed that on extended protection tripped (red button on the drill collar housing otschelknulas). I connected through another power strip. All earned - zapilikalo as usual internal and external fans whirled, but the compressor no signs of life (nothing in it clicks, creaks, etc..). When you turn on the light in the room kondeya just blinks once - about half a second. Fault indication no no - all turn on and off as usual.

"Most likely, the start-up capacity of the lost quality factor" - suggested forum, and they were right.

In general, of course, describe all possible cases of failures of modern air-conditioning systems is impossible. The more complex the machine, the greater the range of possible problems. The only thing that can be advised in this case - to use splits are carefully planned and carried out the diagnosis time. Despite the fact that this operation is worth the money, the benefits of properly (and long) work equipment will be still higher, experts advise.

FORUMHOUSE also give readers tips on choosing conditioner. If you wish to split your own, be sure to check out Tips experienced craftsmen! And here you can see, how to mount in the house air heating systemIn which the air conditioner is only one part of a larger system.

Discuss the article and read other materials devoted to country life you can on the websiteFORUMHOUSE.

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