Auto -controller often turns on and the reasons are turned off

Cyclic inclusion/off of air conditioning coupling

Hello. I noticed that the air conditioning coupling cyclically turns on/off with an interval of 15-20 seconds. You can hear a click on the clutch, it works for 20 seconds, then it also turns off for about the same amount and turns on again. And so constantly. The air goes from the deflectors cold, the salon is cooled in an acceptable time. But these constant inclusions/off, I think it’s not very good?

But do not think, we must study the principle of work, then there will be no questions like that. I will answer the question with the question: your refrigerator is not turning off at home? The condo is the most and the compressor only creates pressure and turns off the reached.

Of course not. But does not turn on/off every 20 seconds

Yes, this is all clear, then why is it so often on/off, these are unnecessary loads on the chains and on the mechanical parts, are the Nissan engineers so intended? Split system at home. You turn on and work an hour and a half until it takes the temperature, and then the click-shred, especially unsuccessfully “click” occurs at the time of the start from the traffic lights, as if they were holding the back.

There basically “does not cold”/”does not turn on”. And the fact of the matter is that the cold goes and there are no complaints about the chillation of the cabin, after 5 minutes you begin to freeze, but these inclusions/off are not clear. Thanks for understanding.

Yes, I have about the same way. Depends on pressure. Now the evaporator is leaking and at low pressure the compressor will not turn off, but there will be no cold. When there is almost no pressure, it will stop turning on.

The temperature sensor is on the evaporator. And when the temperature drops below a certain value, the coupling is turned off. This is necessary so that the evaporator is not covered with ice

The temperature sensor is on the evaporator. And when the temperature drops below a certain value, the coupling is turned off. This is necessary so that the evaporator is not covered with ice

Here I am email.The Kondeya P11 scheme once laid out:

It contains a pressure sensor (Pressure Switch), the temperature sensor of the evaporator (Thermo Control Amplifier) ​​and the Ambient Air temperature sensor). Accordingly, the inclusion-off of the coupling depends on them all.

Here I am email.The Kondeya P11 scheme once laid out:

It contains a pressure sensor (Pressure Switch), the temperature sensor of the evaporator (Thermo Control Amplifier) ​​and the Ambient Air temperature sensor). Accordingly, the inclusion-off of the coupling depends on them all.

Yeah. There is a selection sensor on the P-11, but there is no n-15 on my n-15. It turns out that the sensor on the evaporator is enough. THX. I’ll see the circuit later from the computer.

Reason 3. Dirty air filter

Clogged air filters are one of the most common causes of alternating current problems. A dirty air filter limits the flow of air in your AC system and can cause many problems, including short climate operation cycles.

If your external alternating current unit turns on and off, and you have not performed maintenance of alternating current for several years, it is quite possible that the capacitor coils of your alternating current are covered with dirt and garbage.

The capacitor coils are located inside the external alternating current unit and release heat from the inside of your house. If they are clogged with too much dirt and dirt, your alternating current system can overheat and often turn off.

The fan of the internal unit has broken

A non.Working fan sharply worsens cooling, and the control module after a while may well turn off the air conditioner.

Symptoms: any: if the control unit has failed, it is impossible to predict its behavior: for example, the air conditioner may arbitrarily turn on and off, indicators are feverishly blinking and the like madness

To accurately determine that a faulty control unit is to blame, of course, only a qualified specialist can be guilty. And you should definitely not climb into it for an unprepared person: the consequences will be fatal, including possible breakdowns of other expensive components of the air conditioner. Usually the control module is changed or reflash.

Granta turns on and off the air conditioner

Hello. Why does the air conditioner constantly turn off on Granta and turns on because of this car rides jerking at low speeds?

Can this be due to the weak tension of the generator belt?

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Igor, turns on and turns off because there at some trim levels the pseudo.Climate, which supports the given temperature by turning on and disconnecting the conder) and there should not be jerks, maybe the air conditioner tube, it had increased vibrations and tangible loss of the machine power when the conder is turned on

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How to Fix Your Car’s AC for Free. How Air Conditioning Works

2013 car. I did not change the phone. I have a machine gun. I stand for example at a traffic light. I keep the brake with a certain effort. Here the condo cuts. The revolutions are first sagged, then they are immediately added (a little more than 1000), and because of this, because of this, it twitches and rides a little forward. The turns are stabilized (slightly less than 1000 become). In principle, this problem has been since the purchase of a car, but now it has become more manifested. Vladimir, I looked for information on the Kondei tube. Mostly write about noise. But about the drop in power and about the speed of revolutions when the conde is turned on from.They don’t write anything for this tube.

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0 0 answer rating: 0

Igor, you can try to put the PVC valve in the fentration of crankcase gases. There is infa on the drive. People write that they are sagging the contributions when turning on a conde or fan smaller and this is almost not felt. I put it at home, while I went with Kondeus, it is not refuel. But the craving appeared on the bottoms, the hut felt that it became easier to move.

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Igor, I tell you this, I had a drop in power, vibration, and if you stand near the car, the sounds like the devil are expelled from the car, and how the pipe was replaced by all the fire, it stands almost all the old sample, just not everyone gets away with the fact that they are getting tired of You are drinking, they think it works and excellent) there are current currents on fresh machines, and I think they’ll stick the remains of old tubes once every other time

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Aleksandr, this garbage PCV.In profile forums, except drive, they also write that he is nah. Y did not give up. No autovaz should not be considered fools.

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Sergey, all the others produces the fools also do not need to be considered fools. Even on mates, he comes from the factory. And about the design and innovative abilities of AvtoVAZ, I think everything is already getting. Since 2108, little has changed in AvtoVAZ cars. This valve will not add horses to our cars, especially since it does not bring a foreign car out of it. But here comfort when touched, switching gear and turning on the conder in t.H. It will be higher. I tell you this not as a sofa expert who looked at the reviews on the forums, but as a person who put and tried on his own.

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Aleksandr, you famously enroll in sofa experts when you yourself believe in what the same sofa experts write on the drive.You yourself look at the Granta forum and you will understand what I mean.And yes, if you did not know, then even at 2114 2011, a calibrated sleeve stood in a small crankcase ventilation hose, an analogue of your PCV.Later she was removed from the hose.On grants there is no.However, when removing the valve cover, in the place where the tube goes to the hose, this same tube has a transition to a smaller diameter, that is, the hole is calibrated.So everything is already there.And wise men, like you, still consider themselves smarter than designers.

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Sergey, I see no reason to switch to rudeness, and the monastery did not want you. And I know about the calibrated sleeve and about the closure in the tube, but the principle of action has a completely different. And again you will not see the main thought. I do not believe that the sofa experts from the drive advise, I advised what I tried myself. And just on your part, the statement that all this is hu, although you yourself did not try. Then give a person your advice, how to get rid of the drawdown of revolutions when the conde is turned on.

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I also pulls at low speeds, I include that this is all the gas, because of the pedal business

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Aleksandr, I was also interested in this topic.On the forums, people so tried this PCV, someone had a failure, someone has no.People also came to the conclusions that this is all the placebo effect.But there, it was when touched by the car from the place that someone had the effect, and someone did not notice anything.On the dependence of the air conditioning system when turning on this valve-no word. My opinion is that the matter is precisely in the output of the voltage when turning on the compressor coupling and moving at low speeds.I had the same effect at 2114 when the radiator cooling fan is turned on (powerful energy consumer during spinning).It can be in the “mass”, the voltage regulator. Although on the four I defeated this effect by installing a fan.Launcher.The problem has gone.

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Regarding fresh cars, I have Granta Norm 8 C, Konder behaves the same

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New Granta station wagon 8 cells. Turns on and disconnected every 10 seconds, drift very stress.I don’t know what to do, while I signed up for the dealer (((

Compressor malfunction

Even if there is gas in the system, the air conditioner may not cool the air and not develop the desired pressure. There are not so many reasons. The most common problem is the destruction of the compressor itself.

On most machines, it is an axial piston, but there are both in-line and rotor-piston structures. In any case, in its mechanical part there are problems such as bullying, grabbing, the destruction of connecting rods and other mechanical nodes. It happens that valves, fittings, and even joint joints are jammed or flowing.

If the compressor is destroyed, it supplies a lot of garbage to the system, often it damages another knot.

Fortunately, the most common problem of all compressors is the banal refusal of an electromagnetic coupling, in which a simple “clutch” sometimes burns out and wears out, and the electromagnet burns. Also, the coupling often fails through the fault of the bearing.

The simplest external designs easily change in place, even without removing the compressor from the machine. Complex designs with built.In sealed couplings are more reliable, but to replace faulty elements will require a serious bulkhead of the compressor itself.

Replacing the support bearing of the coupling will also often require the use of the press, and it will not work to complete without removing the compressor itself from the machine. However, sometimes it is enough to adjust the gap or remove dirt from the coupling, and the knot restores performance.

Long-term overheating and overloading the system most often leads to breakdowns with the safety sensors disconnected, or a lack of or incorrectly chosen lubrication and falling products of the filter-dryer destruction into the compressor piston group.

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Causes

Before looking for the cause of the breakdown, make sure that the device really turns off. Perhaps you have acquired a very quiet air conditioner. And only because of the lack of a characteristic noise from the inner block it seems to you that the device does not work.

Turn on the air conditioner, configure the usual mode of operation. After turning on, wait from 1 to 15 minutes. If there are malfunctions in the device, it will turn off in this time interval.

Do not focus only on the sound, take a stepladder, get to the inner block of the air conditioner and attach your hand to the holes at the bottom of the case, from where the air usually comes. If you don’t feel anything, then the device is really faulty.

So, you were convinced that the device turns on and immediately turns off after a short operation. Why is this happening? Here are some of the most common reasons:

The heat exchanger thermal sensor has failed

The fan in the inner unit is faulty

Let’s take a closer look at each reason.

The set temperature has been achieved

This is the most common reason due to which the air conditioner stops.

If you have an ordinary device, not inverter, then it will automatically turn off when it reaches a given temperature. T.E., You set the temperature, for example, 22 degrees, the device begins to work at full strength, reaches 22 degrees and turns off.

At the same time, a special sensor reads the air temperature in the room, and it will eat above/below 2 22 degrees, the device will automatically turn on and will cool/heat the air to a given temperature. This is the normal operating mode of the air conditioner.

Air drainage mode is included

In the drainage mode, the device does not work endlessly. He performs his function within 15 minutes. In this mode of operation, the air conditioner itself turns off after a while, this is normal.

The compressor has overheated

But this is already more serious reason. The air conditioner is equipped with a special protection that works when the compressor is overheated, which is why the device automatically stops its operation.

There can be many reasons for overheating, but the most common are pollution of the split system or an excess of the refrigerator agent. With an excess of Freon, you cannot do anything, you will have to call the master.

But cleaning can be done independently. With your own hands at home, you will cope with the cleaning of the inner unit. Trust the work with the external unit, this is not an easy task. Also trust the master with the cleaning of the drainage pallet and drainage tube.

Let’s go back to the inner block. Observe simple steps to clean the device with your own hands:

Give the filter. It is a mesh plate on a plastic base;

Use a vacuum cleaner and a nozzle with a narrow nozzle to remove dust and insects from the inside of the block;

Rinse the filter under running water. If necessary, use a soft sponge or brush to clean the filter of dirt. As a detergent, use special tools for cleaning air conditioners;

Using a sponge and detergent, clean the internal components of the block;

Dry the block and filter naturally. Do not use a drying hair dryer;

Insert the filter in place, close the decorative panel.

Air thermal attewer out of order

Often the device is turned off, since the air temperature sensor is faulty in it. Often in this case, the part is simply replaced with a new. This work is only possible for a specialist with experience, in addition, before repair it is necessary to conduct a full diagnosis.

The heat exchanger thermal sensor has failed

Everything is the same as in the previous paragraph.

The fan in the inner unit is faulty

For full functioning of the split system, a working fan is needed. If it fails or will work incorrectly, the device will simply turn off 5-10 minutes after turning on. Repair is carried out, as in the last paragraph: replacing parts with a new. Work should be carried out by an experienced master.

Controls’ malfunctions

This is the last reason why the air conditioner is disconnected. Of course, there are other reasons, but we are only talking about the most common. A faulty control board can generally work miracles: it arbitrarily turn on and off the device, change the settings, etc.D. The exact “diagnosis” will say the master after diagnosis, so seek help from the service center.

Causes

Before looking for the cause of the breakdown, make sure that the device really turns off. Perhaps you have acquired a very quiet air conditioner. And only because of the lack of a characteristic noise from the inner block it seems to you that the device does not work.

Turn on the air conditioner, configure the usual mode of operation. After turning on, wait from 1 to 15 minutes. If there are malfunctions in the device, it will turn off in this time interval.

auto, often, turns, reasons

Do not focus only on the sound, take a stepladder, get to the inner block of the air conditioner and attach your hand to the holes at the bottom of the case, from where the air usually comes. If you don’t feel anything, then the device is really faulty.

So, you were convinced that the device turns on and immediately turns off after a short operation. Why is this happening? Here are some of the most common reasons:

The heat exchanger thermal sensor has failed

The fan in the inner unit is faulty

Let’s take a closer look at each reason.

The set temperature has been achieved

This is the most common reason due to which the air conditioner stops.

If you have an ordinary device, not inverter, then it will automatically turn off when it reaches a given temperature. T.E., You set the temperature, for example, 22 degrees, the device begins to work at full strength, reaches 22 degrees and turns off.

At the same time, a special sensor reads the air temperature in the room, and it will eat above/below 2 22 degrees, the device will automatically turn on and will cool/heat the air to a given temperature. This is the normal operating mode of the air conditioner.

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Air drainage mode is included

In the drainage mode, the device does not work endlessly. He performs his function within 15 minutes. In this mode of operation, the air conditioner itself turns off after a while, this is normal.

The compressor has overheated

But this is already more serious reason. The air conditioner is equipped with a special protection that works when the compressor is overheated, which is why the device automatically stops its operation.

There can be many reasons for overheating, but the most common are pollution of the split system or an excess of the refrigerator agent. With an excess of Freon, you cannot do anything, you will have to call the master.

But cleaning can be done independently. With your own hands at home, you will cope with the cleaning of the inner unit. Trust the work with the external unit, this is not an easy task. Also trust the master with the cleaning of the drainage pallet and drainage tube.

Let’s go back to the inner block. Observe simple steps to clean the device with your own hands:

Give the filter. It is a mesh plate on a plastic base;

Use a vacuum cleaner and a nozzle with a narrow nozzle to remove dust and insects from the inside of the block;

Rinse the filter under running water. If necessary, use a soft sponge or brush to clean the filter of dirt. As a detergent, use special tools for cleaning air conditioners;

Using a sponge and detergent, clean the internal components of the block;

Dry the block and filter naturally. Do not use a drying hair dryer;

Insert the filter in place, close the decorative panel.

Air thermal attewer out of order

Often the device is turned off, since the air temperature sensor is faulty in it. Often in this case, the part is simply replaced with a new. This work is only possible for a specialist with experience, in addition, before repair it is necessary to conduct a full diagnosis.

auto, often, turns, reasons

The heat exchanger thermal sensor has failed

Everything is the same as in the previous paragraph.

The fan in the inner unit is faulty

For full functioning of the split system, a working fan is needed. If it fails or will work incorrectly, the device will simply turn off 5-10 minutes after turning on. Repair is carried out, as in the last paragraph: replacing parts with a new. Work should be carried out by an experienced master.

auto, often, turns, reasons

Controls’ malfunctions

This is the last reason why the air conditioner is disconnected. Of course, there are other reasons, but we are only talking about the most common. A faulty control board can generally work miracles: it arbitrarily turn on and off the device, change the settings, etc.D. The exact “diagnosis” will say the master after diagnosis, so seek help from the service center.

Damage 1. Little refrigerant

The refrigerant can disappear through the seals of tubes, heat exchangers and compressor. Seals can bear from age. The air conditioner in the old car no longer cools the salon, as before.

There are also mechanical damage to the tubes: from friction, vibrations and stones of stones (part of the system is located in the engine compartment).

If the refrigerant is not enough, the pressure in the system will fall. And the sensor simply will not let the air conditioner compressor turn on.

  • Remove the protective cap from the gas station on the thick tube (return) and press the thin object on the tip of the nipple (only cover the space around the rag). If “millet” intensively, then the refrigerant in the system is. But the weak hiss or its complete absence indicates a large loss of working substance;
  • A car on a lift or observation ditch? Check: are there any oil divorces on tubes, hoses, compressor. The refrigerant, which seeps even in small quantities, will carry an air conditioning oil with it, which will leave stains on the surface of dusty parts.
auto, often, turns, reasons

Low Water Pressure. Well Pump Problems? Check This First

The air conditioner cools poorly

How to check?

With a running engine, we turn on the maximum cooling mode of the air, set the climate system to the maximum speed, direct the flows into the middle zone (through deflectors in the front panel). Turn on the air conditioner.

Air temperature output from Largus deflectors before refueling  and after . On the street 26 ° C. Over, even before refueling, the air conditioner turned on.

Air temperature output from Largus deflectors before refueling  and after . On the street 26 ° C. Over, even before refueling, the air conditioner turned on.

After a short time, the air should become significantly cold. Ideally, at an external temperature of 20–25 ° C, the flow should not be warmer than 9 ° C. You can roughly estimate the temperature with your hand, but it is better to use different types of thermometers. Convenient thermometer with a remote sensor that can be pushed into the duct.

If clarity did not appear, we climb under the hood. We find the thick and thin aluminum tubes of the air conditioner, going, in most cases, from the front of the motor compartment along the right mudguard to the motor shield. Observing precautions, we cover the thick tube with your hand. It should be ice. If this is not the case, then the condo does not work properly: most likely, the refrigerant came out.

Swamp cooler

In the 30s of the last century, even before the era of expensive car air conditioners, their cheap substitutes. Coolers came into fashion. Inside the pipe on the window, there was a cartridge made of porous or fibrous material, which was constantly moistened with water. When the machine was in motion, the water evaporated intensively, cooling the air.

The main shortcomings of the coolers are the need for frequent refueling with water, as well as the smell of dampness, because of which the American name appeared-Swamp Cooler, from SWAMP-“Swamp”.

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