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- Is the air conditioner malfunctioning? With my 8 years of experience in repairing air conditioners, I will tell you how to solve these faults, which should save you a lot of detours.
When encountering a failure of the air conditioner, we must strictly follow the scientific procedures, and do not act blindly and disassemble at will when the situation is unclear, the fault is unclear, and there are countless in the heart. The consequence of this often amplifies existing faults, increases operating costs, shortens the normal service life of equipment, and leads to early scrapping of equipment.
The air conditioner is not refrigerated or does not refrigerate.
This problem is most common, and the lack of fluorine in air conditioners is the key.
When the machine is turned on, first touch the trachea and judge it by the temperature.
If it is cold, the speed of the fan may be low.
The inner tube scales and dust are cleaned or replaced.
If the inner tube is not considered cool, the thick tube may be flattened.
The return air temperature is not cool, and then touch the intake air to judge.
The air intake is cold and frosty, and fluoride is added to try again.
If the frost slowly disperses, it is a good decision to lack fluoride.
It is not difficult to see the aging of the press, and the lack of exhaust is the key.
Four-way gas is also commonly judged by fluoride collection.
High-pressure scales must be seen to be dirty, and they will be slow to refrigerate.
- Finally, I wish the work to go well, fix the air conditioner earlier, live a happy life——— please give an answer if you think it is good, give a good review, and wish you a better life———
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Write down what air conditioner and how big? Is it a new section?
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The Gree air conditioner starts and stops after a while.
Here's a possible cause: Auto mode might be enabled. When the set temperature is close to room temperature, the machine will stop working at the set temperature.
Causing the illusion of failure to stop driving for a while, the actual air conditioner is no problem. The voltage is abnormal and unstable. Compressor overload protection.
It is recommended to try replacing a voltage regulator. 3. The temperature of the indoor coil is too high, resulting in protective shutdown. When the indoor temperature is 26 degrees Celsius and the outdoor temperature is above 20 degrees, the air conditioner is not heating normally, which is easy to cause protection.
Failure of the indoor fan, resulting in no blowing and protection shut-off. Outdoor fan malfunction, resulting in severe frosting. It has the function of defrosting and cold air entering the room.
The air conditioner was turned on for more than ten minutes and stopped.
This fault is generally a compressor thermal protection failure. The main reasons are as follows: the external heat exchanger is too dirty and the heat is not good.
Solution: Clean 2. Poor compressor capacitance. Just change it.
3. The fan capacitance is not good, the fan speed is slow, and the heat dissipation is not good. Just change it. 5. Air is mixed in the piping system (snow).
The Gree air conditioner starts to cool down and the compressor stops running after about ten minutes.
There are many reasons why it doesn't cool. It's just a range of possibilities. For example, the probable cause is the phenomenon of a tripped compressor protector.
Compressor overload protection tripping, i.e., the system pressure is too high or the overheating current is too large. Causes and elimination of high-pressure overheating: 1. Too much refrigerant.
Reduce the cooling dose appropriately. 2. Poor heat dissipation. Inspect the condenser lines for dirt and clean them.
Blockage of the plumbing system. According to the pressure gauge, judge, eliminate, and then system shed envy rolling treatment. 4. There is dust and scale in the evaporator or filter.
The air flow decreases, the system pressure and the Paijin temperature are lost, and the evaporator or filter is cleaned. Fluoride deficiency is also possible. When there is a lack of fluorine, the compressor discharge temperature will overheat, tripping the overheating load protection switch.
The circuit problems are: 1. The control circuit board is faulty. The temperature sensor is overloaded and the information is incorrect.
The power connection is loose and the contact is poor. 4. The starting capacitor or compressor starting coil is burned. Lack of information, can only be analyzed in this way, there are many other possibilities, it is recommended to find a professional maintenance personnel for inspection.
I hope it helps you. If you're satisfied, accept. Thank you!
Checking and cleaning the radiator of the outdoor unit may be the cause of the dirty radiator of the outdoor unit, the easiest way is to pour water into the radiator of the outdoor unit to try it, if it is no longer turned off, the radiator of the outdoor unit is dirty.
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The air conditioner runs after two or three seconds, and the protection stops for what reason: 1. It may be that the temperature controller of the indoor unit is damaged. Open the shell of the indoor unit, there is a 3 4 cm long copper sleeve on the copper pipe coil inside, and the tube temperature sensor head is stuck inside. 2. The outdoor unit is installed in the grille, or there is a block around it, and the ventilation is poor, resulting in protection shutdown.
3. The starting capacitor of the cooling fan of the outdoor unit is damaged, the fan does not rotate, and the temperature is too high and the protection stops. It can be seen with the naked eye. When the fan does not rotate, replace the fan starting capacitor.
4. Most of the refrigeration leakage is lost, the refrigeration capacity of the air conditioner is greatly reduced, and the machine is easy to overheat. The air conditioner that leaks from the refrigeration economy is obviously much louder than before, and it is easy to identify. Let the master who repairs the air conditioner add the refrigeration and check for leaks.
I hope I can't help you. <>
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Minor breakdowns in our aircon are things that we often encounter in our lives. Although the maintenance of air conditioners is very convenient now, only one ** maintenance master will come to the door, but the maintenance cost is not cheap. So, what are some common glitches in air conditioners that we can fix by ourselves?
Let's tell you how to fix the air conditioner fault by yourself.
The first fault phenomenon: the air conditioner can be started normally, the outdoor machine will be accompanied by loud noise and shaking, the sound is like the humming sound of electric current passing, the obvious situation is that the air conditioner is not cooling or heating, and the outdoor unit stops running after running for a period of time. This kind of failure is generally due to damage to the compressor starting capacitor!
As long as there is no danger in the installation position of your air conditioner's outdoor unit, you can replace the compressor starting capacitor by yourself.
Replacing the capacitor of the air conditioner is very simple and there is no major danger, as long as you remember to unplug the power cord of the air conditioner before opening the outdoor top case. Let's take the old Gree air conditioner as an example: when you disassemble the top case of the outdoor unit, you can see the starting capacitor of the compressor and the starting capacitor of the outdoor fan of the outdoor unit.
When disassembling the old capacitor, use a cone or pliers to short the two poles of the capacitor and discharge it, and then replace the new capacitor according to the connection of the old capacitor. Although it seems that there are a lot of terminals, it is a bit complicated, but in fact there are only two sets of wires, because this kind of capacitor is like a grinding trip does not distinguish between positive and negative poles, you just need to remember the grouping of wires and plug the two sets of wires into the two poles of the capacitor in turn.
The second fault phenomenon: After the outdoor unit works normally, the outdoor unit stops working after running for a period of time, and sometimes the outdoor unit fan does not rotate. Either there is uneven refrigeration or heating, there is cold air for a while and there is no cold air for a while, and there is high-pressure protection for the fault slag stool.
This kind of fault can generally be concluded to be due to damage to the starting capacitor of the outdoor unit fan! This kind of capacitor is also not divided into positive and negative poles, and there are only two connecting wires, which is as simple as replacing the capacitor of an electric fan.
As for the size and specification of the capacitor, you can refer to the above parameter table to select the capacitor. The most common reference price of compressor capacitors for air conditioners is about 20 yuan. The reference price of the starting capacitor of the outdoor unit fan is within 5 yuan.
After reading the above introduction, do you think that the common fault repair of air conditioners is very simple!
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<> Reasons for the shutdown of the air conditioner after 10 minutes of refrigeration: 1. The temperature controller in the room is quietly damaged and needs to be replaced; 2. The installation position of the outdoor unit is incorrect, resulting in protection shutdown; 3. The starting capacitor of the cooling fan of the outdoor unit is damaged; In the case of leakage in the fourth refrigeration of slag excavation, new refrigerant is added; Fifth, there was a short circuit in the line of the air conditioner. Sixth, the most compressor protection device jumps.
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There is a certain degree of leakage in the chiller in the air conditioning system pipeline, or the power supply voltage of the air conditioner is too low.
The air conditioner runs in refrigeration mode, and the cold air at a certain temperature comes out when it starts to run normally, and the air conditioner shuts down after a period of time, which can only indicate that the air conditioner has leaked refrigerant. When there is a certain leakage of refrigerant in the pipeline of the air-conditioning refrigeration system, the exhaust temperature and suction temperature of the air-conditioning compressor will increase the orange cavity, and the exhaust temperature will rise to a certain amplitude, and the compressor will be shut down protectively, so that the air conditioner will stop the refrigeration operation and switch to the air supply mode. The phenomenon manifested is that the air conditioner runs intermittently refrigeration, and the air conditioning group indoor unit is cold for a while and not cold for a while.
At this time, what needs to be done is to report to the air-conditioning manufacturer for after-sales repair, and professional maintenance personnel will conduct on-site maintenance to determine the degree of refrigerant leakage and troubleshooting.
During the daily use of the air conditioner, the filter screen of the indoor unit of the air conditioner should be cleaned regularly, and the ground under the shut-off valve of the outdoor unit should be regularly observed for oil stains and oil stains.
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There are many reasons for shutdown and non-refrigeration, and the possible reason is the phenomenon of the compressor protection device tripping.
Compressor overload protection will trip, indicating that the system is too high-pressure, the pressure is too high, or the overheating current is too high. High roll.
Causes and elimination of high pressure and overheating:
1. Too much refrigerant. Reduce the refrigeration dose appropriately.
2. Poor heat dissipation. Check the condenser pipe for dirt and dirt and clean the condenser.
3. The pipeline system is blocked. Refer to the pressure gauge to judge, Shiye elimination, and re-systematic treatment.
4. Dust and fouling of the evaporator or filter screen. The airflow becomes smaller, the system pressure and temperature are unstable, and the evaporator or filter is cleaned.
5. Fluoride deficiency is also possible. When there is a lack of fluorine, the compressor discharge temperature will overheat, causing the overheating load protection switch to trip.
The electrical problem is:
1. Control circuit board failure.
2. The temperature sensor is overloaded and the information is wrong.
3. The power supply wiring is loose and the contact is poor.
4. The starting capacitor or compressor starting coil is burned out.
The information is insufficient, it can only be analyzed in this way, and there are many other possibilities, it is recommended to find a professional maintenance personnel to check it.
Hope it can help you, satisfied. Thank you.
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The air conditioner trips when it is turned on is the most common problem for users, and the low voltage cannot be driven, because at noon and evening it is the peak of the power of the hole bridge, which causes the voltage to drop, of course, the current rises and is called, so the air conditioner will trip as soon as it is turned on.
The air conditioner trips when it is turned on and checks the method:
First, to ensure that the voltage is normal, replace a new leakage switch, if it is not successful, it is the place where the air conditioner has a short circuit, and it should be carefully checked.
Second, first check whether the Nasan Meng leakage protector is normal, and then check whether the air conditioner is leaking.
That's good.
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