The more common faults of air conditioners and their causes and maintenance methods

I'll write a book when I've said it all.

You also said you can't reproduce.

Besides, there are no points. LZ, you're so insincere.

You can just worry about it, you may not be able to understand it if you copy it.

It's common not to flicker, it's not refrigerated.

There are many reasons for this.

1 No refrigerant plus refrigerant is.

2 The power supply is not connected properly Just connect the power supply.

3 The compressor capacitor of the outdoor unit is broken, just replace the capacitor.

4 The capacitor of the external motor is broken, just replace the capacitor.

5 If the capacitor of the indoor motor is broken, just replace the capacitor.

6 。。Too much.

Let's call you on my phone occasionally.

1. There is no response when powering on, the multimeter measures the ln resistance of the plug, the normal is about 400-700 ohms, if there is no transformer or fuse. Continue normally, measure the power supply voltage, continue if it is normal, after powering on, test whether the 7805 output voltage on the board is -5V, if not, the 7805 is bad, yes, the CPU is bad, change the motherboard OK

2. Do not accept the signal of the remote control, first see if there is interference, continue normally, turn on the camera function of the mobile phone, aim the remote control "small bulb" at the hue head, press the remote control to see if there is a white light, if not, the remote control is bad. Continue normally, change the receiver and try again, if not, you can change the display board.

I'm tired to death, send me an email and I'll give you a secret address, all of this, on the condition that it is given to me.

Car air conditioner or home air conditioner?

1. Aging of air conditioning: The service life of ordinary appliances is about 15 years, so although it can still be used after more than 15 years, many parts have been aged, and even if there is maintenance, there will often be problems, so it can only be replaced with new equipment to completely solve this problem.

2. Lack of fluoride in air conditioning: Lack of fluorine in air conditioning will lead to no refrigeration of air conditioning, if it is found that the refrigeration effect of air conditioning is declining, then it is freon deficiency or leakage, generally air conditioning will appear after several years of use, this is the normal consumption of air conditioning, just ask a professional master to supplement freon for air conditioning.

3. The power of the air conditioner is small: this is not a failure, that is, many owners choose an air conditioner with a relatively small number of horses in order to save costs when buying an air conditioner, but it is installed in a large room, resulting in an unsatisfactory indoor refrigeration effect.

4. The air conditioner has a peculiar smell: this is mainly because the filter screen of the air conditioner has not been cleaned for a long time, resulting in dust accumulation, and it will become moldy and produce peculiar smell after a long time.

In summer, many people will install an air conditioner at home, which can well regulate the indoor temperature and allow people to enjoy a more comfortable living environment. However, if the air conditioner has been used for a long time, it is inevitable that there will be one failure or another. So what are the common faults of air conditioners?

What are the common faults of air conditioners.

After many years of use of the air conditioner, it is inevitable that there will be various small conditions, so it is necessary to repair it in time, otherwise the problem will become more and more serious. You can use methods such as looking, listening, touching, and measuring to check what is wrong with the air conditioner. According to relevant statistics, the common faults of air conditioners are as follows:

1. Refrigerant leakage;

2. The leakage of the line;

3. Blockage of refrigeration system, air filter, air inlet and air outlet;

4. The electrical line is disconnected;

5. Burning group of compressor and fan motor;

Common faults of air conditioners and corresponding maintenance methods 1.

Summer is here, and people are turning on their air conditioners, ready to enjoy the rare refreshment of summer. But at this time, if the air conditioner is not cooling, then it is really heartburn. There are generally two reasons why the air conditioner cannot be cooled, which may be caused by a lack of refrigerant, or the air conditioner has not been cleaned for a long time.

At this time, you can first take a look at the situation of the filter and heat sink, if it is seriously dirty, you can clean it first to see how the refrigeration effect is. If it still doesn't work, it is necessary to consider whether it is caused by the lack of refrigerant, at this time, it is necessary for professionals to use a measuring tool to measure first, see how much is missing, see if there is a leak, etc., and then repair it, and then replenish the sufficient amount of refrigerant.

Common faults of air conditioners and corresponding maintenance methods 2.

Generally speaking, the outdoor unit of the air conditioner will only drip, but if the indoor unit at your home is dripping, then everyone should pay attention. Generally speaking, there are two main reasons for the dripping of the indoor unit: 1. The installation of the air conditioner is unbalanced, and if it is in a horizontal position, this situation usually does not occur.

2. Another reason is that the drain pipe of the air conditioner is blocked or bent, but the internal water cannot flow out. In this case, the user can take a look at it first, and the problem of the drain pipe can usually be solved smoothly.

Common faults of air conditioners and corresponding maintenance methods 3.

Generally speaking, the air conditioner will not make a lot of noise during operation. If the air conditioner in your home is making a lot of noise while working, then it must be out of order. There are generally two reasons for the noise of the air conditioner:

1. The first reason is that the bracket of the external machine is not stable, or it is not in a horizontal position, which will make the external machine noisy when it is running, and it is necessary to rearrange it at this time, and tighten the unstable bracket with screws; 2. Another reason is that the wind speed of the air conditioner is relatively large, and the speed of the air outlet is also large, resulting in a relatively loud noise. At this point, you need to reduce the wind speed, and you can do it.

Air conditioning is a very important electrical appliance in our daily life, and it is closely related to our quality of life. However, because the air conditioner outdoor unit has been in the outdoor windy and rainy environment for a long time, the various components are naturally very susceptible to damage, at this time, the repair of the air conditioner is very important, however, many inexperienced people often do not understand this, for this reason, this article will introduce some air conditioning maintenance methods for you, so as to make a reference when you need it. 1. There are two main types of air conditioners that do not turn on and do not turn on, the first is that there is no response when the power is on, [transformer, fuse, rectifier bridge] these should be pediatric things, and the important measurement of 5V and other voltages are normal, most of this problem can be solved by changing the crystal oscillator [next to the CPU].

There is also a beep sound when plugged in, and the remote control is not turned on [manual can] basically the receiving head is bad [changing the receiving head will not be searched on the Internet to know, it is easy to find the feet of the receiving board, the negative pole of the capacitor or the line that the circuit board is very wide, and it is easy to find the other two feet of the feet] 2. The air conditioner will automatically switch on and off from time to time, and some will call to clean the receiving board in the middle of the night, and the receiving head or remove the automatic transfer switch can basically be killed. 3. The external machine will automatically stop for a few minutes or tens of minutes after turning on, or the external machine will not start and change the indoor Qingxiao tube temperature sensor. 4. Boot shows various faults** Presumably you can't remember all the air conditioners**, I never remember the fault**, teach you a trick, 1 test the connection line of the internal and external units.

2. Measuring sensors. 3. Measure the power supply voltage. 4. Reversing [380V electricity], check whether it is out of phase.

Observe whether the current and indoor and outdoor units are too dirty, and I believe that general problems can be solved. 5. The outdoor unit does not start when turned on or there is only a fan outside For beginners, the capacitor is generally bad, and other problems will be analyzed in detail. 6. Compressor thermal protection for a period of time I believe that this is the most headache for all air conditioning maintenance, this kind of problem can not be solved normally according to conventional methods, confirm that the system and voltage heat dissipation are normal, it is best to change the compressor, don't waste time, time is money, don't listen to a lot of methods said by some magazines, I have used those methods, the success rate is very low, there is no need, some people change the short capillary, don't do it, professional ethics issues, and affect the effect of air conditioning.

Through the above introduction, we have a general understanding of some maintenance methods of air conditioning, from which we can see that most of the time the problem of air conditioning is that he will not be able to turn on the machine on a business trip, you can see whether the situation is consistent according to the above introduction. It is worth noting that the method given in this article is for your reference only, because the circuit involved in the air conditioner is very dangerous, therefore, it is not recommended that you maintain it independently, and it is best to ask special personnel to avoid safety accidents.

In the scorching summer, once there is a small fault in the air conditioner, it will be bitter to think about it, after all, this is the most important magic weapon for summer life. Let's take a look at how to deal with common faults of air conditioners.

Common fault phenomenon of air conditioner: There is a burning smell in the heating of air conditioner.

1. If the smell is not the smell of burnt plastic, it may be that when using electric auxiliary heating, the dust on the heating tube is baked, and the smell will slowly disappear after several uses. If the smell is unbearable, it is recommended to turn off the electric auxiliary heat of the air conditioner, or ask the air conditioner maintenance personnel to disassemble the air conditioner to clean the dust on and next to the heating pipe. There won't be any more scumbags in this taste.

2. If you smell the smell of plastic, it may be that the air outlet of the air conditioner is blocked, resulting in the hot air in the air conditioner not coming out. If the heat cannot be dissipated, it will cause the plastic cup inside the air conditioner to burn, first check whether the air conditioner outlet is blocked, test whether the wind at the air outlet is very strong with your hands, if it is very small, it is recommended to open the air conditioner for inspection, and clean up the foreign objects that fall out of the air outlet.

3. It may also be that the circuit of the empty hand beam is aging or the heating wire is abnormal, resulting in the temperature generated by the heating wire being too high, and this problem needs to be disassembled for inspection.

If the burning smell of the air conditioner lasts for a short time, it is normal to automatically disappear after using the air conditioner for a period of time, indicating that it is just the smell of dust, if the smell is still there after 2 hours of use, it is recommended to disassemble the air conditioner for inspection, most of the cases are the air conditioner is blocked or the problem of the heating wire causes the air conditioner temperature to be too high. The heating wire needs to be replaced or the air conditioner needs to be cleaned.