What s the deal with the car turning on the air conditioner fan not turning?

The reasons why the car air conditioner fan does not rotate are: the fan relay fails, the main control switch is in poor contact, the fan motor coil is damaged, and the engine water temperature does not meet the requirements. It is best to go to the repair shop for inspection in time so as not to affect the normal use of the car.

1. If the relay fails, if the relay fails, the radiator fan of the car will not work. If the water temperature is not abnormal and the car radiator fan still does not work, then there may be a problem with the fan's relay.

2. Poor contact of the main control switch and damage to the coil of the fan motor. Use a multimeter to measure the contact resistance of the main control switch, when the resistance is too large or zero, it should be repaired or replaced.

3. The set screw between the motor of the fan and the fan blade is loose. Tighten the set screws.

4. The fan capacitor is open or short-circuited. Check the capacitor and replace it with a capacitor of the same specification.

If the car air conditioning fan does not rotate, it will seriously affect the air conditioning refrigeration, and seriously damage the air conditioning system and compressor, so if the air conditioning fan does not turn, it should be repaired in time.

Summary. Hello, I am happy to answer your car master exclusive technician to answer your car questions sincerely and sincerely for you, and find solutions and methods for you to ask questions. The electronic fan of the car is controlled by two reasons, one is the water temperature, the second is the start of the air conditioner, when the water temperature reaches more than 90 degrees, the water is heated and enters the state of large circulation, when it reaches about 95, the fan will start to strengthen the heat dissipation, and there is also a possibility that after the air conditioner is turned on, because the compressor refrigeration concentrates the excess heat on the condenser, at this time the fan must also work to dissipate the heat in order to maintain, the normal operation of the air conditioning system, can be idle in situ, Try if the fan will work, now in winter, you generally need to idle in situ for more than half an hour before the fan starts, if the fan is normal, the car has not appeared too high, the whole system is no problem with the car can be used with confidence, I hope mine will help you.

Why does the car fan turn when the air conditioner is on, and it doesn't turn when the air conditioner is not turned on?

Dear, this question is up to me, it takes a little time to type, please be patient, thank you!

Hello, I am happy to answer your car master exclusive technician to answer your car questions sincerely and sincerely for you, and find solutions and methods for you to ask questions. The electronic fan of the car is controlled by two reasons, one is the water temperature, the second is the start of the air conditioner, when the water temperature reaches more than 90 degrees, the water is heated and enters the state of large circulation, when it reaches about 95, the fan will start to strengthen the heat dissipation, and there is also a possibility that after the air conditioner is turned on, because the compressor refrigeration concentrates the excess heat on the condenser, at this time the fan must also work to dissipate the heat in order to maintain, the normal operation of the air conditioning system, can be idle in situ, Try if the fan will work, now in winter, you generally need to idle in situ for more than half an hour before the fan starts, if the fan is normal, the car has not appeared too high, the whole system is no problem with the car can be used with confidence, I hope mine will help you.

Summary. Because the cooling fan works according to the water temperature of the antifreeze to decide when to rotate, generally when the water temperature reaches about 108 degrees, the low speed of the cooling fan starts to work, and the water temperature reaches about 118 degrees, the high speed of the cooling fan starts to work. So it's not as soon as the vehicle starts up that the cooling fan starts to turn.

When the car turns on the air conditioning and refrigeration system, the compressor of the air conditioner starts to work, which loses part of the engine power, so the engine load increases, and in order to prevent the engine load from increasing again, the cooling fan will start working immediately.

What should I do if the car fan doesn't turn and the air conditioner turns on?

Hello, I am inquiring for you here, please wait a while, I will reply to you immediately

Hello dear, glad to answer for you. Car cooling fans do not work immediately after the vehicle is started, provided that the refrigeration system of the air conditioner is not turned on.

Because the cooling fan works according to the water temperature of the antifreeze to decide when to rotate, generally when the water temperature reaches about 108 degrees, the low speed of the cooling fan starts to work, and the water temperature reaches about 118 degrees, the high speed of the cooling fan starts to work. So it's not as soon as the vehicle starts up that the cooling fan starts to turn. When the car turns on the air conditioning and refrigeration system, the compressor of the air conditioner starts to work, which loses part of the engine power, so the engine load increases, and in order to prevent the engine load from increasing again, the cooling fan will start working immediately.

It may be that the water temperature has not yet reached or the water temperature induction plug is broken, but in winter, the idle speed to turn the fan is really time, and there should be no problem with the fan control circuit when the air conditioner is turned on! There is also air in the cooling system that will cause the fan not to rotate, and the water temperature will generally be high in this case! It should be that the water temperature does not reach a certain temperature, so it does not turn, if the water temperature is normal, it does not turn, check the fan fuse and relay.

The engine is boiling and still not turning.

You follow the above reasons to find out.

04 Poussin car fan relay which one.

Inside the fuse box, look for it.

The fuse did not burn.

I said, the relay is in the fuse box, not that your fuse is burned.

The cooling fan will not rotate automatically.

When the lubricating oil is dry, re-add the lubricating oil and you're good to go.

Lubricating oil added in**?

The cooling fan port is fine, dear.

I hope the above is helpful to you If you are satisfied with me, please give me a thumbs up

No, the fan is no problem, turn on the air conditioner, and the fan will turn.

The fan is fine, just add lubrication.

I hope the above is helpful to you If you are satisfied with me, please give me a thumbs up

Summary. Hello, dear, why does the car fan turn on the air conditioner, and it doesn't turn if the air conditioner is not turned on: it should be the condensing fan in front of the hood, if it is normal, because the air conditioner is turned on, the condenser needs to be cooled, and this fan is used for cooling; If the fan is broken, there is no cold air blowing, the system will automatically stop, when the air conditioner is not turned on, it will automatically stop and start the car, the engine temperature is not very high, the fan does not move; Turning on the air conditioner requires immediate heat dissipation, the fan starts, and when the engine is running at high speed, the fan will also move, and the engine needs to dissipate heat.

Why does the car fan turn when the air conditioner is on, and it doesn't turn when the air conditioner is not turned on?

Hello, dear, why does the car fan turn on the air conditioner, and it doesn't turn if the air conditioner is not turned on: it should be the condensing fan in front of the bucket or hood, if it is normal, because the air conditioner is turned on, the condenser needs to be cooled, and this fan is used for cooling; If the fan is broken and there is no cold air blowing, the system will automatically stop, when the air conditioner is not turned on, it will automatically stop and start the car, the engine temperature is not very high, and the fan does not move; Turning on the air conditioner requires immediate heat dissipation, the fan starts, and when the engine is running at high speed, the fan will also move, and the engine needs to dissipate heat.

What is the reason why the discharge of the engine does not turn at the same time?

Didn't you start at the beginning?

That's right, the exhaust fan would turn as soon as it was turned on, I don't know why.

The exhaust fan does not rotate when starting the normal cold car, and it will rotate when the temperature goes up.

After driving for a few kilometers, the engine was so hot that it felt like it was smoking, what is the reason for this?

I'm short of antifreeze.

Can the car continue to drive, and how much does it cost to change the refrigerant log?

Just add antifreeze.

Not expensive. It's usually about a hundred.

The exhaust fan with the meter is not broken, then I asked you if you can continue to drive, will it affect the engine, then you still say ** is not expensive.

Normally, if there is a lack of antifreeze, it is necessary to add it in time, it is not recommended to run, and it is not expensive to add antifreeze.

Will it help me change the coolant during maintenance, so is there a lack of cooling nights in this case, or is the exhaust fan broken?

It will be checked during maintenance, and the missing things will be added to you.

The exhaust fan won't turn when the cold car starts, dear.

Summary. Hello, dear, the car master will serve you, attentively, carefully and attentively answer for you, find the corresponding problem solution and solution for you, and will definitely provide you with a satisfactory answer! We hope you find this answer helpful.

Hello, the fan does not turn on, and the air conditioner turns to indicate that the corresponding line of the fan is fine. First, the problem with the water temperature sensor causes this phenomenon, and it is recommended to check the water temperature sensor first.

This phenomenon caused by the problem of the second thermostat requires a thermostat to be checked. Third, the problem of the fan control module, the fan control module needs to be replaced.

Hello, dear, the car master for your service, attentive, careful trembling hall, concentrate on answering for you, for you to find the corresponding problem solution and solution, will provide you with a satisfactory answer! We hope you find this answer helpful. 。

Hello Sui Hui, the fan does not turn on, and the air conditioner turns to indicate that the corresponding line of the fan is fine. First, the problem with the water temperature sensor causes this phenomenon, and it is recommended to check the water temperature sensor first. This phenomenon caused by the problem of the second thermostat requires a thermostat to be checked.

Third, the problem of the fan control module, the fan control module needs to be replaced.

Wuling Hongguang water temperature 85 degrees meter is not accurate.

The temperature of the meter is not the same as the actual temperature.

High meter temperature?

Check the water temperature sensor or the tie line.

The meter temperature is high, and the water temperature sensor has been replaced.

If the water temperature read by the computer is normal, then it is a problem with the tie, and it is necessary to check the tie line or install a new tie line.

How to retrofit. Install an iron wire from the negative pole of the battery to any position of the vehicle engine.

This car has already been retrofitted.

Then check whether there is a problem with the instrument harness or the instrument itself.

Repair the car air conditioning fan without turning: replace the empty control switch, replace the fan motor cable, reinstall and fix the fan bearing.

Poor switch contact: If the empty switch is not in good contact, the normal start of the empty switch of the car cannot be controlled, and the fan of the empty switch of the car cannot be turned on and will not rotate. In this case, replace the empty control switch and pay attention to whether the connecting wire of the switch is short-circuited.

Poor switch contact: If the empty switch is not in good contact, the normal start of the empty switch of the car cannot be controlled, and the fan of the empty switch of the car cannot be turned on and will not rotate. In this case, replace the empty control switch and pay attention to whether the connecting wire of the switch is short-circuited.

2. Replace the fan motor cable

Fan motor coil damage: If the fan motor coil is damaged, the fan cannot supply energy normally, which will cause the fan to not rotate. In this case, the coil of the fan motor should be inspected and repaired, and if necessary, it can be replaced directly.

3. Reinstall and fix the bearing of the fan

Fan bearing falling off: When the fan bearing falls off, only the bearing is empty and the fan cannot rotate normally. In this case, the bearings of the fan should be reinstalled and secured.

1. The main control switch has poor contact.

Maintenance method: Use a multimeter to measure the contact resistance of the main control switch, when the resistance is too large or zero, it should be repaired or replaced.

2. The fan motor coil is damaged.

Maintenance method: Use a multimeter to measure the contact resistance of the main control switch, when the resistance is too large or zero, it should be repaired or replaced.

3. The set screw between the motor of the fan and the fan blade is loose.

Maintenance method: Tighten the set screws.

4. The fan capacitor is open or short-circuited.

Repair method: Check the capacitor and replace it with a capacitor of the same specification.

It is said that if the air conditioner wants to use it well, it needs to be paid attention to the installation, and the industry people say that the air conditioner is "three points of quality, seven points of installation", and the air conditioner is regarded as a semi-finished product after leaving the factory, and it can be considered a finished product after the correct installation and debugging. Therefore, if you want the air conditioner to be easy and smooth to use, you must pay attention to it when installing it.

How car air conditioners work.

The automotive air conditioning and refrigeration system is composed of a compressor, a condenser, a liquid storage dryer, an expansion valve, an evaporator and a blower. Copper pipes and high-pressure rubber pipes are used to connect them into a closed system. The refrigeration system works, and the refrigerant circulates in a closed system in different states.

Each cycle has four basic processes:

1. Compression process: inhale the low-temperature and low-pressure refrigerant gas at the outlet of the evaporator, compress it into high-temperature and high-pressure gas and discharge it out of the compressor.

2. Heat dissipation process: The superheated refrigerant gas at high temperature and high pressure enters the condenser, and is condensed into liquid to dissipate heat by the reduction of pressure and temperature.

3. Throttling process: the volume of the refrigerant liquid with higher temperature and pressure becomes larger after passing through the expansion device, and the pressure and temperature drop sharply, and the expansion device is discharged with fine droplets.

4. Endothermic process: the mist refrigerant liquid enters the evaporator, and the boiling point of the refrigerant is much lower than the temperature in the evaporator, so the refrigerant liquid evaporates into gas.