What are the malfunctions that lead to the fact that the air conditioner does not cool

We are used to comfortable conditions and now we can not imagine our life without various devices that facilitate it. In winter, we are warmed by electric and gas heaters. Summer heat helps to survive the air conditioners. It happens that, despite the visibility of the work, its useful function for cooling air does not fulfill this useful device. What if it happened?

Go straight to the workshop?

So, what if the air conditioner does not cool? You can answer this question in the same manner as one doctor, when a guest came to him for advice: "Address to a specialist!" But it happens that the master is not needed, it is enough to perform some simple operation, after which everything will be good. In order to distinguish this situation from the other, when you do without visiting a service center or a specialized service station (if this car air conditioner does not cool the air), you should at least in general terms become acquainted with the principle of operation of this necessary household appliance.

Principle of operation of the cooler

All air conditioners work on the same principle. Moreover, they are direct relatives of an even more common device, a refrigerator. And they function quite simply. The reasons why the air conditioner does not cool can be the same for which the refrigerator does not want to freeze.

All the railway conductors know a little secret, allowing without electrical appliances, even in the hottest noon to provide cold air to the passengers who wish to fly. It is enough to wrap a bottle or jar in a damp towel and put this combination out of the window. A fast-moving car is in a stream of air, and the evaporation of water occurs quickly. At the same time, thermal energy is diverted from glass or aluminum containers. The reverse process is condensation, with it heat is consumed. On this principle, all cold storage equipment, from small bar refrigerators to huge port facilities bearing the same name, works.

What does air conditioning consist of?

In order to operate the air conditioner, it must have five serviceable components: an evaporator, a condenser, a compressor, a fan and a choke. As is clear from the previous section, heat is removed from the room air in the evaporator. But this is not enough, energy needs to be removed, otherwise, according to the law of its conservation, it will remain in isothermally isolated space. The same refrigerator, if its door is simply opened in a closed room, while working, it will not cool it, but, on the contrary, it will raise the temperature a little (by heating the electric motor).

Heat is released into the environment in the area of the condenser into which the refrigerant (inert gas) pumps the compressor, compressing it and converting it into liquid, that is, condensing. The heat exchange of the fan decreases. The throttle (it's such a valve) serves as a regulator of the cooling intensity, it is often coupled with an automated control circuit that receives information from the sensor. It compares the preset and actual temperature and produces a control action, expressed by opening or closing the throttle. That's all.

The most common failure

The most common reason that the air conditioner does not cool well (or in general drives warm air, becoming suddenly an ordinary fan) is a leak of coolant. It is expressed in violation of the integrity of the closed loop, through which the inert gas circulates, becoming liquid in the condenser. Actually, nothing is perfect in nature, and sooner or later this happens. In this situation, it is almost impossible to cope with the task independently. For refueling Freon need: special equipment, a gas tank, as well as the skills to fill it with the system. In addition, most likely, you need to determine the location of the leak (somewhere the coolant has evaporated), otherwise the procedure will have to be repeated soon.

Other causes of ineffective work

The air filter is very important in the operation of the microclimate system. If it hovers, then not only does the air conditioner do not cool, there is a danger of contracting some dangerous virus. Bacilli in the filter accumulates a lot, they fall into the air, which inhale the inhabitants of the room. You can change this consumable item yourself.

There is also a hydrostatic shock that breaks down the system. This happens when trying to turn on the device at a very low temperature (which is generally meaningless). The compressor in this case is not gas, as expected, but a liquid that does not have time to evaporate. If so it turned out, you need to contact the service center.

In very hot weather, some motorists complain that the air conditioner in the car does not cool the air. In this case, there is no need to rush to SRT, but simple rules should be followed.

First, it is best to leave your "iron horse" in the shade or close the windshield with foil blinds. If the air in the cabin is still too hot, do not immediately turn on the air conditioner. He does not warm, perhaps because he just needs time to come to working condition. A dozen kilometers "with a breeze" will cool off excessive fervor, and he will rejoice with freshness.

Secondly, the air conditioner does not need to be immediately "cut to the full", start better with the smallest position of the regulator to give the device gradually "disperse".

Thirdly, to switch off the installation of the microclimate more correctly when the engine is running, so as not to overload the vehicle's power supply with transient processes.

And in the fourth, with any doubts still apply to a specialist.