Should I include automotive air conditioning if the windows is less than zero

Scary: break. But they say that air conditioning can dry the steamed-up windows. It's true?

Not. Automotive air conditioner dehumidifies the air, banishing it through the cooled heat exchanger. In the process the moisture settles on its walls in the form of drops, and the salon gets longer dry air.

The problem is that at low temperatures, this process is technically impossible. Moisture will immediately pass into the solid state, the heat exchanger rapidly evaporator will acquire a thick layer of ice, and after it ceases to pass air.

However, the air conditioner still need to include even in the winter. And regularly.

Hmm. Why then?

Not cool or dehumidify the air, of course, but for his own good.

The thing is that circulating inside the system further comprises a freon oil which serves to lubricate the internal surfaces of components and seals. During downtime formed on them oil film slowly flows. And the longer the air conditioning did not run, the greater will be the wear components in the next start-up. To seal the long absence of lubrication means drying up and the risk of seal failure with subsequent leakage of Freon.

It is therefore recommended to include automotive air conditioner at least once a month regardless of the season.

I tried, but the air conditioning is not included. Why?

Due to frost. The fact that the air-conditioning system is equipped with a pressure sensor, and it at freon in gaseous phase highly depends on temperature.

The cold pressure may fall heavily, and the sensor determines that the Freon is too low, or even not at all, even in completely fueled system.

As we remember, freon further performs the function of the lubricant. Therefore, in the absence of the sensor blocking switch to prevent dry running.

Oh, I earned! But immediately turned off. How so?

Again, protection. Now the temperature. When overboard near zero or less, located on the evaporator sensor is blocked compressor clutch and does not allow to start the air conditioner to prevent freezing and blockage of the evaporator.

The operation indicator on the instrument panel when it can burn, but the air conditioning did not run.

And that nothing can be done?

Well, actually, you can. To bypass the protection, it is necessary to properly warm up the interior and the air conditioner in recirculation mode, when the pitch is not the cold air from the street and from the heated interior.

You can also try to run the air conditioner after a long trip from the engine to warm up the engine compartment, and with it, the evaporator tube and the air conditioning compressor.

This, however, does not always help. And if they will, then not for long.

How, then, to make air conditioner work?

Warm up. In another way. The chances of a successful launch are significantly increased in the thaw.

But if the weather does not spoil, to bask in the warm will have garages, car washes, or underground parking lots of shopping centers. Once a month, you can even specifically put the car in a warm box. The more that enough only 10-15 minutes of the air conditioner.

And how in general to understand what he has earned?

Most indicator on the A / C can not be trusted, but the method is still there.

First, a few seconds after pressing the button under the hood should hand a distinct click - a sound on the electromagnetic clutch of the compressor drive.

Second, keep an eye on the tachometer needle as soon as the air conditioner is started, the engine speed will increase.

It turns out, the air conditioner in the winter does not hurt anything?

Harm, but do not start and work. The problem in the reactants which is treated with the road.

These chemicals are extremely negative impact on the system nodes conditioning and corrosive, which leads to the loss of integrity and leakage of Freon.

Most goes to the radiator air conditioner, because at him from under the wheels of cars going ahead fall spray snow porridge, liberally flavored with salt.

And what do you do?

In the fight against harmful agents helps to wash ordinary clean water.

Ask cleaners pay attention to the engine compartment and rinse the radiator, piping and compressor. It should be done carefully, minimum pressure jet.

For prevention, you can protect the radiator air conditioner fine mesh: in winter on it will drain the same brine, and in summer it will prevent clogging hundred lice and down.