How to repair a car blower if it doesn t turn?

The fan is used for a long time, and too much dust is deposited, which leads to the increase of the friction coefficient between the rotor and the bearing, and the rotor is blocked or even stuck, resulting in overheating and damage to the coil;

2. Solution: Open the back cover of the fan after power failure, add a few drops of lubricating oil (such as sewing machine oil, etc.) to the bearing sleeves at both ends of the rotor, and pull the leaves while dripping until the fan blades are flexible and the blower fault can be eliminated;

3. It may be that there is no 220V AC input or the coil is damaged;

4. Solution: At this time, the power supply should be cut off, and the two lead wires of the fan should be disconnected from the two lap joints of the power line, so that they can be suspended in the air (note that the two ends of the power line should not be touched together, otherwise it will cause a short circuit). Turn on the power supply, carefully measure both ends of the power cord with a pen, if one end is shiny and the other end is not, it means that the power supply line is normal, and the fan coil may be damaged.

If both ends of the electric pen test are lit or not, it means that there is a problem with the power supply inlet.

There are many reasons why the blower does not work, which is generally caused by motor failure or poor line contact, such as blower motor failure, blower motor control module failure, blower switch failure, related circuits, connectors have open circuits, short circuits or poor contacts. More information about blowers is as follows:1

Function: The function of the car blower is to blow the cold air or the hot air of the warm water tank on the air conditioning evaporation box into the car, if the car air conditioning blower does not work, it will affect the use of the car air conditioner. 2.

Symptom: The blower does not work The symptom is that when the air conditioner and refrigeration switch are turned on, the compressor can turn, but after the blower switch is turned on, the blower cannot operate.

The function of the car blower is to blow the cold air on the evaporation tank of the air conditioner, or the hot air from the warm water tank, into the car, and there is nothing in the blower just a motor.

It is generally replaced directly.

The reasons for the failure of the blower not rotating are:

Damage to the blower ;

Damage to the blower control module;

Damage to the control module of the automatic thermostat air conditioner (IHKA);

Power supply or lap failure of the blower control module;

Line fault. The blower can only be repaired at the repair shop according to the above reasons.

The reason why the blower of the automobile air conditioner cannot work properly is usually the failure of the blower motor, the failure of the blower motor control module, the failure of the blower switch related circuits, the motor failure of the connector such as short circuit or poor contact, or the poor contact of the circuit. A blower regulator is used to control the operating current of the blower and thus the speed of the blower. The signal line voltage of the blower voltage regulator changes according to the operating instructions of the blower button, so the cause of the fault can be determined by measuring the signal line voltage.

If the blower regulator is damaged, the air conditioner control panel will no longer output a command signal to the blower regulator, so there is no voltage in the signal line of the blower regulator.

The main reason why the fan blades do not move is that the fan has been used for a long time, too much dust has accumulated, the coefficient of friction between the rotor and the bearing has increased, the rotor is clogged or blocked, and the coil is overheated, which may be damaged. If you turn on the power and press the blower housing with your hand, the rotor card will die with a little movement, so there should be no problem with the coil. After turning off the power, open the blower back cover, add a few drops of lubricating oil to the bearing covers at both ends of the rotor, and let the blades fall off until the fan blades flexibly resolve the blower failure.

The disappearance of the signal line voltage is not due to a problem with the air conditioning control panel, but to the damage to the blower voltage regulator, and special attention should be paid to prevent misjudgment during maintenance work. The non-operation of the car air conditioner blower will affect the use of the car air conditioner.

Turn on the power and carefully measure both ends of the power cord with a pen, one end becomes bright, the other end does not light up, the power supply** is normal, and the fan coil may be damaged. If both ends of the pen measurement do not light up or do not light up, there is a problem with the power supply. It is more convenient to measure with a multimeter.

Measure the blower duo directly with a multi-purpose meter, and if the resistance value is large or the gauge hand does not move, it indicates that the coil is damaged. The blades of the capacitive blower do not move. It is not uncommon for the rotor to get stuck or the starting winding to be damaged.

Faults are most common in capacitor-started blowers. The main reasons are the useless capacity or severe leakage start group damage, etc. Please remove the original capacitor and connect it with a good capacitor.

After replacing the new capacitor, the fan is also abnormal, which is often caused by damage to the starting coil inside the fan, and only replacing the coil can solve the problem.

The blower has been used for a long time, too much dust accumulates, the coefficient of friction between the rotor and the bearing increases, the rotor is clogged or clogged, the coil is overheated, and it may be damaged. After turning off the power, open the back cover of the fan, add a few drops of lube oil to the bearing housing at both ends of the rotor, and drop the blades until the blades are flexible, and the blower problem can be solved. At this time, the power should be cut off, whether to turn on the power supply, carefully measure both ends of the power cord with a pen, one end becomes bright, the other end is not bright, the power supply is normal, and the fan coil may be damaged.

If both ends of the pen measurement are bright or not lit, there is a problem with the power supply. Automobile maintenance technology network reminds that the car blower is related to the normal use of the car air conditioner, and the owner should overhaul the air conditioning system in time to make the debris fall into the air conditioning intake system without affecting the normal operation of the blower.

At this time, you must change a blower, remember to change the original factory, don't be greedy for cheap, buy some bargains.

The blower should be replaced with a new one, and other faults and problems of the car should also be noted, and at the same time, it can also be repaired by a professional repair shop.

You can go directly to the repair shop for repair, you can also find someone you know to replace, or you can find relevant teaching materials on the Internet, which is a very good way.

If the fan blades of the blower do not move, you can drop some lubricating oil in the blower, you can also use a pen to test whether the power supply of the blower is normal, if it is not normal, you should replace the battery, but also to see if the blower is an obstacle, if the blower fails, you must go to the 4S shop in time to replace.

Go to a 4S shop for repairs, or go to a professional repair place for maintenance, be sure to go to a regular place for repairs.

If such a problem occurs, you should go to a 4S shop for repair, and you can also go to some professional repair shops to repair it.

If this kind of problem occurs, go to the repair shop for maintenance in time, because you can't deal with it.

The car blower does not convert the electricity, does not convert the new blower, or does not make money, which should be a problem with the line.

Summary. Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions truck blower does not turn. Here's why.

First, the resistance inside the blower is damaged. Resulting in no power. Second, the wear limit of the carbon brush inside the blower requires the replacement of the blower assembly.

Third, there is a problem with the circuit of the blower, so it is necessary to check whether there is any open circuit. Based on the above reason analysis. Therefore, it is necessary to measure whether the blower has a normal power supply and tie-up.

You can remove the blower separately and short-circuit it to see if the blower rotates. If it is rotated so that the blower can be ruled out is normal, at this point check the blower control aspect.

What is the reason why the truck blower does not turn.

Hello, this question can give you a perfect reply, wait for me to sort out the information, I'm typing, 2-3 minutes, don't finish.

Hello, I am your exclusive technician, attentive, careful, dedicated to answering your car questions, for you to find the corresponding problem solutions and solutions truck blower does not turn. Here's why. First, the resistance inside the blower is damaged.

Resulting in no power. Second, the wear limit of the carbon brush inside the blower requires the replacement of the blower assembly. Third, there is a problem with the circuit of the blower, so it is necessary to check whether there is any open circuit.

Based on the above reason analysis. Therefore, it is necessary to measure whether the blower has a normal power supply and tie-up. You can remove the blower separately and short-circuit it to see if the blower rotates.

If it is rotated so that the blower can be ruled out is normal, at this point check the blower control aspect.

If the car air conditioning blower does not rotate, it will seriously affect the function of the air conditioning system, so if the air conditioning fan does not rotate, it should be repaired as soon as possible.

Reasons why the blower does not turn:

First confirm whether the fan motor is stuck, whether the coil is short-circuited or open-circuited, or use an alternative method, replace the new fan on it, no need to install, directly wired, if a good fan can be rotated, it means that there is no problem with the line and control, the original fan is damaged, if the new fan is still not good, it may be because of the line switch or control problem.

1.If the fan is stuck, generally change to a new fan to test, if the new fan turns, it means that the old fan is faulty, and the fan can be replaced.

2.The coil is short-circuited or open-circuited. When the new fan does not rotate, it is a short circuit in the coil, an open circuit in the coil, a faulty fan adjustment button, or a faulty main control switch.

Among them, if the fan does not rotate, but the compressor is operating normally, it may be that the main control switch is damaged, the fan adjustment button is faulty, the motor coil is a problem, the fan line is a problem, and so on.

3.The fan is aging and the service life has reached the end of the service, so you can replace the fan with a new one.

When the fan does not rotate, it should be checked and repaired in time. If the fault is ignored for a long time, it may lead to problems such as air conditioner heat dissipation failure, compressor not working, high pressure of air conditioning system, etc.

Answer: Hello, I'm glad to answer for you, I'm Teacher Xiaoxue, and there will be two reasons. 1.The fan is used for a long time, and too much dust is deposited, which leads to the increase of the friction coefficient between the rotor and the bearing, and the rotor is blocked or even stuck, resulting in overheating and damage to the coil;

Solution: After the power is off, open the back cover of the fan, add a few drops of lubricating oil (such as sewing machine oil, etc.) to the bearing sleeves at both ends of the rotor, and pull the leaves while dripping until the fan blades. 2.

It may be that there is no 220V AC input or that the coil is damaged. Solution: At this time, the power supply should be cut off, and the two lead wires of the fan should be disconnected from the two lap joints of the power line.

Question: I have a 09-year-old modern Lingxiang here, and the blower does not turn.