Air conditioning compressor maintenance method encyclopedia cheats in hand, never worry about it

The usage rate has also increased. In prolonged use, air conditioning compressor.

There will also be a variety of problems, which requires the user to be able to master some common air conditioning compressor maintenance methods, only in this way, when there is a problem, there will be no worry. In this article, Tuba Rabbit brings you the analysis of the reasons why the air conditioning compressor does not work and the maintenance methods of their respective compressors for your reference.

The weather is getting hotter, and the air conditioning fridge at home.

There are successions that come in handy. But one day you suddenly find that the air conditioner is not so cool, and most of the compressors are out of order. The following Tuba Rabbit will take you to learn how to repair air conditioning compressors, and you should master these little common sense.

Air conditioner compressor maintenance method 1: supplement freon

The air conditioner is used for too long and the internal freon** is not enough, which is the most common cause of the compressor not working. If this phenomenon occurs, you can notify the after-sales personnel of the air conditioner to replenish the freon in time, which can solve the phenomenon that the compressor does not work.

Air conditioner compressor maintenance method 2: replace the power supply line.

Line card. When the power supply line card of the compressor is burned out, it will also cause the air conditioning compressor to no longer work, which is usually caused by the compressor working under long-term load. If this phenomenon occurs, you can ask professional after-sales personnel to replace the new line card.

At the same time, it should be noted that when replacing a new line card, professionals should use sandpaper to wipe the rust spots on the terminal to avoid the line card being burned again.

Air conditioner compressor maintenance method three: add a voltage regulator.

or adjust the power cord

Poor contact of the power cord of the air conditioner will also cause the compressor to not work, at this time the user can check the outlet of the air conditioner.

Whether it belongs to a special socket, the air conditioning cable is enough to plug in. In addition, if the voltage at home is unstable, it will also cause the compressor to not work, at this time, please ask a professional maintenance personnel to check and then add a voltage regulator.

Air conditioner compressor maintenance method 3: check the connecting pipe

If the connecting pipe is bent during the installation process, the compressor workload will increase, and the compressor will not work for a long time, so only the connecting pipe needs to be reinstalled.

There are many reasons why the air conditioning compressor does not work, and there are many compressor maintenance methods corresponding to nature. After reading it, you can try to repair it in combination with the actual situation, if it is beyond the scope of your own repair, you must ask for help from professional compressor maintenance personnel!

Air conditioner compressor maintenance method.

In summer, the temperature is relatively high, and the air conditioner cannot refrigerate, which we all know is a troublesome thing. Generally speaking, air conditioner failures are outdoor air conditioning unit failures and indoor unit failures. What are the maintenance tips for the outdoor unit of the air conditioner not working, let's take a look.

1. The remote control mode is incorrect.

The reason why the outdoor unit of the air conditioner does not work is often because there is a problem that the remote control mode is incorrect, so you need to check whether the remote control is set to refrigeration mode. When using the air conditioner remote control, adjust the mode to display "cooling" or "snow" and set the temperature to 26 degrees or lower.

2. Caused by power supply problems.

Observe whether the outdoor unit has sound (including outdoor fans and compressors). If the outdoor fan is running, the control circuit is almost normal. At this time, you should observe whether the compressor starts or not, and if the compressor does not start, you should check whether the power supply is normal.

3. Insufficient voltage will lead to downtime.

If it is not the cause of low voltage, please check whether the connection between the indoor unit and the outdoor unit is correct, whether the wires are aging, and whether the wiring of the main board of the indoor unit is correct. Otherwise, replace the internal motherboard.

4. Lack of maintenance leads to downtime.

If the air conditioner is not maintained for a long time, the outdoor unit of the air conditioner cannot be rotated. Analysis: The reason why the air conditioner does not turn on the outdoor unit may be the loose structure. The locking position of the screws and wheels may be loose; Unsuitable; Due to the guarantee of the injection molding process, the plastic parts make a humming sound, the wind deflector and the connecting rod mechanism are plastic parts, and the transmission performance of the guide fan, stepper motor and connecting rod mechanism structure is affected, and the indoor unit cannot be operated.

1. First of all, drain the refrigerant on the air conditioner, then turn on the machine, and then hit the lower part of the compressor with a hammer to accelerate the compressor operation. 2. At this time, Bury Hong can absorb 200 ml of refrigerated oil from the fluoride place. 3. After the compressor returns to normal, install various accessories, and through a series of pressure, evacuation and fluoride processes, the compressor can be restored to its original state.

Wooden hammer percussion.

Tilt the air conditioner 45 degrees to the front and back, left and right, then turn on the machine, and hit the lower part of the compressor with a wooden hammer to let the internal stuck parts run due to vibration. If the new compressor does not work, it may be that the air conditioner has been left for too long, causing the piston assembly to stand still. In addition, the thick viscosity of the refrigeration oil in winter is also a factor, and this method can be used to eliminate faults.

Barometric shock method:

First drain the refrigerant, weld the high and low pressure pipes of the compressor with gas welding, weld one end of the copper pipe with length and d10 on the high-pressure outlet pipe, and connect the other end with the pressure reducing port of the nitrogen cylinder with a nano, and use nitrogen to give the compressor megapascal reaction force to loosen the parts. Take the low-pressure out of the bending smile for 5 minutes, and then use the strong lifting method to test the machine.

After the compressor works easily, the current is, and then the high and low pressure pipes are welded, pressed, leak detected, evacuated and fluoridated, and the air conditioning compressor works normally. This is a more common method, and usually small faults can be fixed.

If you want to know how to repair an air conditioning compressor, you must first understand its principle

Air Conditioner Compressor Principle:

1.The air-conditioning compression bright-up intercom plays the role of compressing and driving the refrigerant in the air-conditioning refrigerant circuit. The working circuit is divided into evaporation zone and condensation zone, and the indoor unit and outdoor unit belong to the high-pressure or low-pressure area respectively.

The compressor is generally installed outdoors, and the compressor extracts the refrigerant from the low-pressure area and sends it to the high-pressure area for cooling and condensation after compression, and dissipates heat into the air through the heat sink, and the refrigerant also changes from gaseous to liquid, and the pressure increases. The refrigerant then flows from the high-pressure area to the low-pressure area, and is injected into the evaporator through the capillary, and the pressure drops sharply, and the liquid refrigerant immediately becomes gaseous, absorbing a large amount of heat in the air through the heat sink. In this way, the machine works continuously, and constantly absorbs the heat at one end of the low-pressure area into the refrigerant and then sends it to the high-pressure area to dissipate it into the air, which plays a role in regulating the air temperature.

2.When the air conditioner is running for refrigeration, the low-temperature and low-pressure refrigerant gas is inhaled by the compressor and pressurized into high-temperature and high-pressure refrigerant gas, and the high-temperature and high-pressure refrigerant gas is exothermic in the outdoor heat exchanger and becomes a medium-temperature and high-pressure liquid, and the medium-temperature and high-pressure liquid becomes a low-temperature and low-pressure liquid after throttling and depressurizing through the throttling parts, and the low-temperature and low-pressure liquid refrigerant becomes a low-temperature and low-pressure gas after endothermic evaporation in the indoor heat exchanger, and then enters the compressor for compression and reciprocating circulation.

3.The compressor is the heart of the refrigeration system, whether it is air conditioning, cold storage, chemical refrigeration process and other working conditions, the important link of the Russian compressor to do the guarantee! There are many types and forms of refrigeration compressors, which can be divided into two types: volumetric type and speed type according to the principle, among which the volumetric type is the most common.

Air conditioner compressor maintenance method.

1. Close the suction shut-off valve, start the compressor for a few minutes, and then discharge the refrigerant in the crankcase into the condenser to make the crankcase into a vacuum state. After the air conditioner shuts down, close the exhaust shut-off valve, then unscrew the screw plug next to the exhaust shut-off valve to release the remaining air in the high-pressure chamber, and then remove the through-hole screw plug of the suction shut-off valve, and install the cone joint and copper pipe.

2. After preparing the lubricating oil, use your fingers to hold the suction nozzle, and then start the compressor to pump out the air in the crankcase, if you find the liquid hammer phenomenon, let the compressor continue to run for 2-3 minutes, and wait until the crankcase becomes a vacuum, and at the same time hold the fingers of the nozzle to feel the strong suction force and stop.

3. Immerse the suction tube held by your finger into the lubricating oil, and then let go, and the lubricating oil will be automatically sucked into the crankshaft tube.

4. Observe the oil level indicator and know that the added lubricating oil reaches the oil level line.

5. Wait until the oil is filled with oil and remove the copper pipe and joint and screw on the screw plug tightening, and then start the compressor to pump out the inhaled air in the crankcase, Fu Ling wait until the exhaust sound can not be heard and then tighten the screw plug of the exhaust stop valve, and finally open the suction and exhaust stop valve, and the refueling work is completed.

We tilt each part of the air conditioner at 45 degrees, and after turning on the machine, we use a wooden hammer to hit the lower part of the air conditioner compressor, and the parts inside the air conditioner compressor are shaken to make it work. If our air conditioner is newly installed, then it may be because the air conditioner has been placed for too long, and the piston assembly has been stationary for a long time.

The compressor of the air conditioner does not work, then it may be because the air conditioner has been used for too long, and the temporal freon of the air conditioner is insufficient, and we can replenish the freon in time.

If the power cord of the air conditioner is burned out, then we can reassemble the new power cord, and we need to grind the rust spots on the surface of the terminals.

If the voltage is out of the door and there is an unstable lower mother, we can reinstall the voltage regulator so that the air conditioner can work properly.

If the connecting pipe is bent, then we can readjust the installation of the air conditioner so that the compressor can work properly.