What is the reason for the abnormal sound of the heater?

If there is an abnormal sound when the car heaters turn on the heater, it may be that there is a foreign object on the heater that causes the blades to rotate and produce abnormal noise. It could also be a lack of lubrication or damage to the fan bearings. At the same time, it can also be due to resonance caused by hardening and embrittlement of parts caused by low temperatures.

The last reason is the dynamic balancing of the fan blades.

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The solution to the abnormal sound of turning on the heater is as follows:

1. Check the blower and air conditioning system.

If there is a foreign object inside, such as leaves, plastic packaging, etc., it will make a similar sound, and the abnormal sound will disappear after being removed in time.

2. Check the bearing of the fan, add lubricating oil or replace the new bearing in time.

3. We don't have to deal with the problems caused by the abnormal sound of the hardening of plastic parts. All you need to do is turn on the heating for ten minutes, let the plastic heat up, and the noise will disappear.

4. Go to the regular maintenance shop to let the master adjust the dynamic balance of the wind blade. If the balance weight falls off, it should be reinstalled in time.

5. The air conditioner pulley and belt slip, there will be a sharp friction sound during the slipping process, check whether there is oil on the belt, if it is oil, make the belt slip clean. If not, you need to adjust the position of the compressor bolt so that the compressor belt is tight, which can increase friction.

6. If the belt is loose and makes an abnormal noise, you can press the belt by hand. If the belt is too loose, it needs to be replaced. If the belt tensioner is damaged, there will be an abnormal sound, and a new tensioner needs to be replaced.

7. The slippage of the compressor clutch will also produce abnormal noise, or the compressor bearing will produce abnormal noise, and it needs to be removed to check what the reason is.

8. Foreign matter entering the blower and respirator will also produce abnormal noise, and the blower and respirator need to be cleaned.

The fault of the general sound in the car is judged to be the problem of the blower, and the abnormal noise outside the car is judged to be the fault of the pulley or compressor. Generally, this kind of squeak and squeak problem is not a big problem, but it is not recommended that we replace or adjust the parts by ourselves. Because the air conditioning system in the car is still more complicated, if you are not familiar with the disassembly steps, if the internal parts of the air conditioner are damaged, it is best to go to the 4S shop for repair, and accidentally damaging other parts will increase the loss.

It is possible that the heater of the car is broken, so when this happens to the car, you must send the car to a professional car repair shop for repair, and only by doing so can you solve this problem.

It may be that the bearing is short of oil, so there is no way to operate normally, so there will be some different sounds.

This is caused by poor lubrication, but also because of the lack of oil in the bearing, and some lubricating oil can be applied.

After the car heater is turned on, there is an abnormal sound, which is caused by damage to the heater motor; The solution is as follows;

First; Remove the heater, open the heater housing, and check whether there are any foreign objects in the fans on both sides of the motor. If there is a foreign body, it is clear.

Second; Turn on the motor to check the electricity. Whether the clearance of the bearings on both sides of the machine is too large. If it's too big, it's okay.

Third; Check whether there is a sweeping and boring phenomenon between the rotor and the spindle, and if there is a sweeping and boring phenomenon, it is recommended to replace the motor.

Fourth; To ensure that the heater motor is maintained before use, the motor bearing is oiled. Heater tank cleaning.

Hello, it should be that there are debris in the fan blades of the heater fan or the fan bearing is damaged, and the dry grinding causes abnormal noise. If you have a problem with the car, ask the car master. 4S shop professional technician, 10 minutes to solve.

This abnormal sound occurs after the air conditioner is turned on, because the relevant equipment or internal parts are loose faults, so there are certain safety hazards in the use at this time, the best way is to recommend that you find a technician to repair it in time, which will be safer, and can also prolong its service life and quality.

First, the vehicle air conditioning filter is too dirty or the position of the air conditioning blower enters the abnormal noise caused by debris, this situation needs to be replaced with a new air conditioning filter in time, and then check the blower, if the blower is debris inside, this situation is that the blower needs to be removed and cleaned thoroughly.

Second, the vehicle cold and warm air conversion adjustment servo motor has the phenomenon of stagnation, this is the need to check the cold and warm air related adjustment motor, if there is a problem, it is necessary to replace the new adjustment motor.

Third, this phenomenon caused by the dirty air duct of the vehicle air conditioner, then this situation is that you need to go to the repair shop to thoroughly clean the air conditioning duct!

If there is an abnormal sound when the warm air is turned on when the car is cold in winter, and the abnormal sound disappears after the water temperature is normal, it is likely that there is a lack of oil in the warm front leakage motor. Solution: Disassemble and clean the heater and add some oil to it.

Some models are normal because of the thermal expansion and contraction of plastics.

If the water temperature is normal and the sound is still abnormal, it means that there is a problem.

The most common situation is that there is an abnormality in the blower.

Solution: Replace the blower.

Because you can't see the actual car, you can't make an accurate judgment, and you need to go to a 4S shop or a professional auto repair shop to let the technician check to be sure.

Identify the problem and fix it symptomatically.

Attached car heater introduction: The working principle of car air conditioning warm air and cold air is different.

The cold air of the car is based on the compressor.

Press the A C key, the compressor works, and the cold air is blown.

The heat of the warm air in the car is provided by the heat dissipation system of the car, and the heat of the warm air comes from the heat generated during the work of the engine, which is introduced into the car by a small fan, which is actually a "waste utilization".

In other words, in winter, you don't need to press the A C button to turn on the heater in the car, because there is no need for a compressor.

Millions of car purchase subsidies.

When the car turns on the heater, the sound of the blower is mostly due to poor bearing lubrication, and it may also be caused by foreign objects in the blower. If the bearing of the blower is poorly lubricated for a long time, it is only necessary to add a part of the lubricating oil or grease to the bearing. If the bearing is damaged, it can be solved by simply replacing it with a new one.

If there is a foreign object in the blower, it is only necessary to remove the foreign matter in the blower.

Automobile air conditioners basically have blowers, and the role of blowers is very important. When the air conditioner is heating, the high-temperature antifreeze in the engine will flow through the warm air water tank, and there is a blower behind the warm air tank, so that the air conditioning outlet can blow warm air. During refrigeration, the compressor continuously compresses the refrigerant and sends the refrigerant to the evaporation tank, the refrigerant can cool the evaporation tank, and the evaporation box can cool the air blown by the blower, so that the air outlet of the air conditioner can blow cold air.

If there is a blower, then the air conditioning outlet will not blow air. The blower can only be replaced if it is damaged. The structure of the blower is very simple, it is an electric motor and a blade, and the vehicle owner can understand the blower as an electric fan for use at home.

The air conditioning system should be cleaned and disinfected at least once a year to benefit the health of the occupants in the car.

Photo by Pacific Automobile Network Car Brother).

The reasons why the radiator rings are as follows:

1.If there is air in the heating pipe, the water in the pipe cannot be filled, so noise will be generated during operation.

2.If there is a lot of debris in the heating pipe, there will be a noise when it is flushed out.

3.If the heat sink expands and contracts coldly, it will cause the heat sink to collide with the metal bracket, resulting in a loud sound.