Under what circumstances can you conclude that the capacitance of the air conditioner compressor is

The capacitor of the air conditioner compressor is damaged if:

1. Turn on the air conditioner, the external compressor starts, and stops after listening to the sound for two seconds, but the fan is still running;

2. Turn on the air conditioner and the air switch trips.

Causes of damage:

1. Capacitor damage (short circuit, open circuit);

2. The capacitor specification does not match the compressor.

The project is only suitable for single-phase compressors. Because a three-phase induction motor is used in a three-phase compressor, the three-phase alternating current passes through the stator core to create a rotating magnetic field, so a capacitor is not required.

The air conditioner compressor capacitor can be concluded to be broken in the following cases:

Turn on the air conditioner, start the compressor of the external unit, listen to the sound for two seconds and then stop, but the fan is still spinning;

Turn on the air conditioner and the air switch trips.

Capacitors are often referred to simply as capacitors, which are denoted by the letter C.

A capacitor, as the name suggests, is a 'container for electricity' and is a device that holds an electric charge. Product Name: capacitor.

Capacitor is one of the electronic components widely used in electronic devices, which is widely used in circuits such as DC blocking, coupling, bypass, filtering, tuning loop, energy conversion, control, etc.

A capacitor, any two conductors (including wires) that are insulated from each other and are in close proximity to each other make up a capacitor. The capacitance composed of copper foil, wires and electronic components on the circuit board is called distributed capacitance compressor capacitor.

Completely broken, the outdoor unit does not turn on. The capacity becomes smaller, and the cooling or heating is poor! It's best to test it with a digital capacitance meter.

The compressor does not run and has a humming sound when energized.

The air conditioner is powered on, and then off, what's the situation.

1. The compressor capacitor is damaged, the performance is that the normal compressor will be accompanied by loud sound and jitter, if the capacitor is damaged, the hand will be pressed on the shell above the compressor will know that the compressor has a slight jitter, the sound is like the sound of current passing, and the compressor will stop moving after a period of time. 2. The capacitance of the external motor is damaged, and the performance phenomenon is that after the normal movement of the compressor, the external motor will stop moving for a period of time, and if there is a fault, there will be high-pressure protection, and the temperature protection of the compressor exhaust pipe. Recommendations and solutions:

The most direct way is to measure the capacitance with a multimeter, and it is good to measure the difference between the measured capacity and the nominal capacity within 1%. When the starting capacitance of the air conditioning compressor is aging and the capacity is attenuated, even if the power supply voltage of the air conditioner is normal, the compressor cannot start normally, and the most direct manifestation is that the current value of the measured compressor is too large, which cannot be started normally and the heating is serious. At this time, it is necessary to use a multimeter to measure the capacitance capacity of the compressor, under normal circumstances, the capacitance capacity measurement value and the capacitance deviation marked on the capacitor body are within 1%, if the deviation exceeds 5%, it can be considered that the capacitor has been seriously aged and can be replaced.

Or just replace it with a new capacitor of the same capacity. Generally, a 15% deviation between the capacity of the starting capacitor of the compressor and the capacity of the standard distribution capacitor will not lead to abnormal compressor operation, and the necessary capacity adjustment can be made according to the specific operation of the air conditioning compressor in the actual process.

Reasons for bad capacitance of air conditioner compressor:

1. The capacitor is damaged (short circuit, open circuit), the air conditioning machine continues to work at high temperature, and the capacitor is easily damaged at high temperature for a long time.

2. The capacitor specifications do not match the compressor, such as a low-power air conditioner for a large room.

3. The voltage is unstable.

4. There is too much dust in the machine and poor contact.

After the compressor capacitance is broken, there will be a fault phenomenon: when refrigerating, as soon as the compressor is started, the air switch will trip.

The compressor capacitance of the air conditioner is damaged, as long as the symptoms appear, the compressor does not rotate after the air conditioner starts, and the air conditioner may have a fault alarm after a while, if the capacity becomes smaller, it will lead to weak motor operation.

Basically, there are no symptoms, because it is a metallized capacitor, it has the ability to heal itself, and generally the capacity is getting smaller and smaller, and there are few cases of bursting. It is mainly measured with meters.

If it bursts, it is more intuitive, and the loss of capacity is only known by measuring.

According to your description, after the capacitor of the air conditioner compressor is broken, some of the capacitors will burst open, and some of the capacitors will burn out, which will cause the compressor to fail to start normally and the air conditioner will not be able to achieve cooling and heating.

Manifestation of broken capacitance of air conditioner compressor: The performance phenomenon is that the normal compressor start-up will be accompanied by large noise and jitter. If the capacitor is damaged, you will feel a slight shaking of the compressor when you press your hand on the housing above the compressor, and the sound is like the sound of electric current passing through, and the compressor will stop running after a while.

The performance is that it can't be refrigerated, the external fan will turn to the compressor and can't start, and the compressor will be hot for a long time.

After the capacitor is broken, the compressor can not run, because this capacitor is used to start the compressor motor and participate in the operation, there are two bad situations here, one is that the capacitor has been broken down, and the current is not passed through at all, and the other is that the capacitor capacity is attenuated, the current can still pass, but the motor can not be started, then the motor will heat up, and finally burn out the motor.

The most important thing is that the compressor does not start working properly.

Secondly, there will be a phenomenon of empty opening or leakage tripping.

The compressor does not start, and the capacitor mainly helps to start the compressor.

The compressor will stop running, and the air conditioner will not cool for a long time.

Compressor capacitance damage:

1.Normal compressor start-up will be accompanied by large noise and shaking, capacitor damage, hand pressed on the casing above the compressor will feel the compressor has a slight shaking, the sound is like the sound of electric current passing through, after a period of time the compressor will stop running.

2.After the air conditioner is turned on, the air conditioner does not cool normally or does not cool at all for a long time.

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There are two capacitors in the outdoor electromechanical box, the larger one is the compressor capacitor, and the smaller one is the external motor capacitor.

The capacitance of the external motor is damaged and silver-slippery

1.After the compressor works normally, the internal and external units stop working for a period of time, and if there is a fault, there will be high-pressure protection, and the temperature of the compressor exhaust pipe will be protected.

2.Judging from the external motor, the external motor will not work after turning on, but after twisting vigorously by hand in the direction of operation, the fan will begin to rotate continuously.

Common faults of capacitors. If one of the following conditions is found in the capacitor, the power supply should be cut off immediately.

1.The capacitor housing is swollen or leaking.

2.The casing ruptures, flashovers and sparks.

3.The sound inside the capacitor is abnormal.

4.The temperature of the shell rises above 55, and the thermostat falls off.

After the capacitance of the air conditioner compressor is broken, the following symptoms may be exhibited:

The air conditioner cannot start: The main function of the compressor capacitor is to provide the starting current, if the capacitor is damaged, the air conditioner cannot start normally. At this point, the user can hear the inside of the air conditioner hissing or there is no response.

Abnormal noise of the compressor: During the working process of the air conditioner, if the compressor capacitance is damaged or aging, it will cause the compressor to run unsmoothly, resulting in an abnormal sound similar to "click" or "bang". At the same time, it may also cause the compressor operating temperature to rise abnormally and cause equipment alarms.

Decreased cooling effect of air conditioner: When the capacitance of the compressor is damaged, the cooling effect of the air conditioner will be significantly reduced, and the indoor temperature cannot be reduced or the temperature fluctuates too much.

Increased risk of failure: Once the compressor capacitor is damaged, it will bring a greater burden to the compressor and air conditioner, and the long-term effect will also affect the life of other components, increasing the risk of equipment failure.

In short, when the above symptoms appear in the air conditioner, it may be that the compressor-type base capacitor is faulty, and it is recommended to repair or replace it in time with the after-sales service center of Lianfeng Qing brand.

When the capacitor of the air conditioner compressor is broken, the following manifestations may occur:1The air conditioner won't start:

The capacitor is one of the key components of the air conditioner start, if the capacitor is damaged, the air conditioner will not be able to start. 2.The air conditioner makes a buzzing sound when it starts:

When the capacitor is damaged, the air conditioner will hum when it starts, and this is because the capacitor cannot provide enough power to start the compressor. 3.The air conditioner is running unstable:

Damage to the pure capacitor will lead to unstable operation of the air conditioner, and there may be frequent shutdowns, difficulty in starting, and unstable operation. 4.The air conditioner has poor refrigeration effect:

Capacitor damage will affect the cooling effect of the air conditioner, which may lead to insufficient cooling or no cooling at all. 5.Air conditioning electricity bill increases: