What is the reason why the fan of the outdoor unit of the air conditioner does not rotate and what s

Check whether the fan starter is damaged, the possibility of the fan motor being broken is very small. If the dirty cold air of the internal evaporator cannot be dispersed or the condenser of the external unit is dirty and the heat dissipation is poor, it will cause the compressor to be protected from high temperature and stop working, then the fan motor will definitely not rotate if it is also high. Generally, in addition to the reason of the fan motor itself, such failures are caused by poor heat dissipation under normal circumstances.

It is recommended that you ask the after-sales service to come and check it.

Air conditioner is the abbreviation of air conditioner, which is a device that processes the temperature, humidity, purity and airflow speed of the air to meet the needs of people's production and life.

Hanging air conditioner is one of the types of air conditioner, which is used to provide a unit to deal with air temperature changes in a space area that saves space (usually closed).

Its function is to adjust the parameters such as temperature, humidity, cleanliness and air flow rate of the air in the room (or enclosed space or area) to meet the requirements of human comfort or process, but the size of the air conditioner should be selected according to the size of the space.

The so-called energy efficiency ratio, also known as the coefficient of performance, is the ratio of the cooling capacity of an air conditioner to its power consumption. Generally, an air conditioner with an energy efficiency ratio close to 3 or greater than 3 is preferred, which is an energy-efficient air conditioner.

For example, if the cooling capacity of an air conditioner is 2000W and the rated power consumption is 640W, and the cooling capacity of the other air conditioner is 2500W and the rated power consumption is 970W, the energy efficiency ratio of the two air conditioners is as follows: the energy efficiency ratio of the first air conditioner: 2000W 640W =, and the energy efficiency ratio of the second air conditioner:

2500w/970w=。

First, the bearing is stuck.

If you find that there is nothing wrong with the other parts of the air conditioner, then it should be that the bearing of the fan is stuck.

2. Air conditioning defrosting.

When the heating mode is turned on, there will be frost outside, and the air conditioning system will automatically enter the defrost mode. At this time, the external fan will stop running temporarily, but the compressor will continue to run and will automatically start heating when the defrosting is completed.

3. Reach the set temperature.

In automatic mode, when the room temperature reaches the set temperature, the fan stops running and the system is in standby mode.

Fourth, the fan motor is damaged.

If the compressor is working properly and the fan is not turning, then it is possible that the fan motor is broken.

5. Faulty starting capacitor.

If the fan does not rotate, it may also be due to the faulty starting capacitor, check whether the starting capacitor is faulty.

Bearing stuck solution: when the air conditioner is out of operation, turn the fan blade of the outdoor unit by hand, and if it does not rotate, it means that the bearing is stuck and the air conditioner cannot rotate normally, first clean up the foreign matter and dust on the fan shaft, and then apply some lubricating oil on the bearing.

The fan of the outdoor unit of the air conditioner does not rotate, and it is recommended to find a professional to repair it.

Possible reasons: 1. The main control switch of the air conditioner is not in good contact, resulting in the air conditioner fan not being able to operate normally;

2. The pressure protection switch in the air conditioner is faulty;

3. The motor coil of the air conditioner fan is damaged.

Solution: 1. Use a multimeter to test the resistance of the main control switch contact, if the resistance is too large or zero, then the main control switch should be repaired or replaced.

2. When the pressure protection switch of the air conditioner fails, we first need to measure whether the voltage on the pressure protection switch is normal, and whether there is a short circuit in its circuit, and then repair or replace the switch according to the measured results.

3. Use a multimeter to measure whether the resistance of the fan coil is normal, if there is indeed a problem with the coil of the air conditioner, then you can ask a special maintenance master to repair and replace the coil when repairing.

Extended Information: Other reasons why the air conditioner fan won't turn.

1. Short circuit or open circuit of fan motor coil, damage to the starting capacitor, wear or poor lubrication of the bearing, and fan blades being entangled by debris. Turn it around to see if it rusts and rotate, then check the temperature of the outer plate, whether there is an open circuit or a short circuit, and whether the over-temperature protection of the motor is damaged.

2. There may be a voltage problem, it is normal in summer, and the compressor stops working when the voltage is low, so there is no air conditioning! (When the light is dimmed, you can use a multimeter to test the voltage) If there is no air conditioner in normal times, then the compressor capacitor or compressor may be damaged, but the compressor is usually not broken! It is best not to turn on the air conditioner when the voltage is low.

If the air conditioner is usually operated in a low-pressure environment, it will affect the life of the compressor!

Thermal protection of the outdoor unit of the air conditioner.

When the air conditioner is cooled in summer, the outdoor machine will discharge a large amount of hot air, and the hot air can easily accumulate around the outdoor unit of the air conditioner, resulting in the "thermal protection" shutdown of the outdoor unit. At present, when the air conditioner is refrigerating, the ambient temperature that the air conditioner can withstand is below 48, the higher the outdoor ambient temperature, the worse the cooling effect of the air conditioner will become, the heat handling capacity of the air conditioner will decrease, the indoor cooling effect will also decrease, and even the air conditioner will shut down. When the outdoor temperature drops, the air conditioner can restore the refrigeration effect, which is the "false failure" of the air conditioner, and if possible, you can also water the outdoor unit to cool down, and quickly restore the refrigeration effect of the air conditioner.

The air conditioner is not having enough power.

If the temperature of the air outlet is in the normal range, the air conditioning effect of the room is not good, indicating that the power of the air conditioner is not enough to support the cooling capacity required by the room (opening the doors and windows to use the air conditioner is also a disguised increase in the area of air conditioning refrigeration).

The refrigeration capacity of the air conditioner is calculated according to 130w-180w per square meter, and it is also necessary to consider the parameters such as room size, thermal insulation, floor, orientation, height, geographical location, etc., if the refrigeration capacity required by the room corresponds to the air conditioning power is small, then the air conditioner can not achieve a better cooling effect.

The air conditioner refrigerant is insufficient.

Air conditioners can refrigerate by relying on the refrigerant (freon) flowing in the copper pipe, and the purpose of transporting cold energy is achieved through the change of the form of the refrigerant. When the air conditioner is not installed well, the air conditioner is too old, the fluoride collection is not enough, the refrigerant is not enough, etc., it is easy to lead to the lack of refrigerant in the air conditioner. Without sufficient refrigerant, the cooling capacity of the air conditioner will decrease, and the first task at this time is to replenish the air conditioner with enough refrigerant, and if there is a leak, it needs to be repaired before adding refrigerant.

There will be no refrigerant consumption in the normal use of the air conditioner, so there is no need to add refrigerant every once in a while.

The air conditioner was not cleaned for a long time.

The air outlet, return air outlet and evaporator of the indoor unit are easy to be blocked by dust, and the fan and heat dissipation fins of the outdoor unit are also easy to be adhered to by dust, and if it is not cleaned for a long time, it will lead to a decrease in the heat dissipation performance of the outdoor unit of the air conditioner and a decrease in the cooling capacity of the indoor unit, and the electricity cost of using the air conditioner will also increase.

There are many reasons for this, the main ones being the following:

First, the starting capacitor is damaged, and a new capacitor of the same capacity should be replaced;

Second, if the motor bearing is seriously worn or the lubricating oil is dry, it should be replaced with a new bearing or filled with lubricating oil to make it rotate flexibly without resistance.

Third, the performance of the air conditioning control circuit is abnormal, resulting in the motor power supply is not on, and the air conditioning control circuit should be overhauled, and the motor power supply can be energized normally.

Fourth, the motor coil has an inter-turn short circuit fault, and the motor should be replaced with a new one.

1 All There are many reasons why the external fan does not work, mainly the following points:

First, the starting capacitor of the motor is damaged, and a new capacitor of the same capacity should be replaced.

The second is the problem of the air conditioning control circuit, which causes the fan motor to have no power.

Third, the motor bearing is seriously worn or the lubricating oil is dry, and the new bearing should be replaced or lubricated to make it rotate flexibly without resistance.

Fourth, if the motor coil has an open circuit or inter-turn short circuit fault, the motor should be replaced with a new one.

Fifth, the motor blades are entangled and stuck by foreign objects.

It may be that the starting capacitor is broken, or it is possible that the motor is broken.

The reasons why the fan of the air conditioner does not turn and the maintenance methods are as follows:

1. The main control switch of the air conditioner has poor contact. When repairing, the contact resistance of the main control switch can be measured with a multimeter, and when the resistance is too large or zero, it should be repaired or replaced.

2. If the coil of the air conditioner fan motor is damaged, it is recommended to detect whether the fan motor problem is serious, if it is serious, it is recommended to replace the new coil or fan motor.

3. The screws connecting the motor of the air conditioning fan and the fan blade are loose. After the air conditioner is used for a period of time, there will be a problem of loose parts, it is recommended to carefully check the loose screws and strengthen them in time.

4. Air conditioning fan capacitor is open or short-circuited, it is recommended that users check the capacitor and replace the capacitor of the same specification and model.

5. The power supply voltage is low, if the general compressor wants to work normally, the power supply voltage usually needs to reach 187V to 243V, if it is less than this number range, the compressor will not be able to operate normally, at this time, we need to configure a voltage regulator for it at home, this problem can be effectively solved.

6. The compressor is damaged and the outdoor fan does not rotate, and the fan of the outdoor unit of the air conditioner caused by the compressor does not rotate, once the compressor is broken, not only the outdoor fan of the air conditioner does not rotate, but the refrigerant cannot be cold, in fact, at this time, we only need to replace the compressor, and the air conditioner can continue to work normally.

7. It may be that the fan motor is stuck, at this time, as long as the power is turned off, turn around with your hand, if there is a card situation, the fan motor is stuck, and you need to change it. You can remove the model or take it directly to the air-conditioning material store to buy a new one and change it at home.

The repair method of the fan does not turn is as follows1. If it is confirmed that it is a socket problem, please plug the electric fan into another socket. If it is confirmed that the wire of the fan is broken, replace it with a wire of the same specification.

2. First clean the oil and sludge of the fan motor, and then drip the lubricating oil on the rotating shaft. The lubricant can be a car lubricant or a sewing oil. You can consult the salesperson before purchasing, and it can be used for fan motors.

3. If the thermal fuse or starter capacitor of the fan motor is damaged, you need to replace these two parts directly. It is possible to contact for a replacement or pay for the replacement within the warranty period.

Abnormal control circuits or faulty fan capacitors and motors can cause the fan motor to not work.

First of all, you should check whether the motor has electricity, dial the fan blades by hand to see if there is resistance or flexible rotation without resistance, if there is resistance, it is mostly bearing wear or lubricating oil dry, if it rotates flexibly, you should check whether the starting capacitor capacity is normal, it is best to replace a new capacitor to try how, otherwise you should consider that the motor itself has a problem.

1. Poor contact of the main control switch: laugh at thisThe reason why the fan of the air conditioner does not rotate may be due to the poor contact of the main control switch. At this time, the resistance of the main control switch contact can be measured with a multimeter, and if the measured resistance is too large or zero, it should be repaired or replaced immediately.

2. The fan motor coil is damagedThe second reason why the fan of the air conditioner does not rotate is that the coil is damaged by the source of the collision. Again, the solution is similar to the one-cause solution.

That is, use a multimeter to measure the contact resistance of the main control switch, and when the resistance is too large or zero, it should be directly replaced.

3. Loose set screwsThe third reason why the fan of the air conditioner does not rotate is that the set screw between the motor of the fan and the fan blade is loose. At this time, the maintenance method is to tighten the set screw.

4. Capacitor open circuit or short circuit:One reason why the fan of an air conditioner does not rotate may be an open or short circuit in the fan capacitor. The solution in this case is to check the capacitor and replace it with a capacitor of the same size.

The above content refers to the Split Spring Encyclopedia - Air Conditioning.

Check whether there is any current in the input of the fan motor, and see if the starting capacitor is damaged or the capacity is reduced.

It's as simple as taking a multimeter to measure.

Hello: 1, the compressor and cooling fan in the outdoor unit of the air conditioner are [Synchronous runof.

2. If the compressor and cooling fan are not running, it should be [Control circuitsOr there is a problem with the connecting cable.

3. The compressor is running, the cooling fan does not rotate, and the fault is in the fan: the capacitor is damaged, the bearing is stuck, and the motor is burned out.

The compressor is running, but the fan of the outdoor unit of the air conditioner does not rotate due to the following reasons: the operating capacitor of the fan is damaged, the motor winding is burned, and the motor bearing is stuck.

In the case of the host running caused! The biggest possibility is that the "fan motor" is damaged! General replacement can be solved! aqui te amo。

If you know electricity, you know what the reason is, and as for what to do, find someone to fix it.