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Midea's air conditioner starts suddenly, it may be that you have turned on the automatic start mode, which is the automatic operation mode of the air conditioner. Check the remote control.
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After normal results in the future, after a few minutes, the muscles will be about and suddenly start, what is the reason? It may be that stress suicide will increasingly cause the sensor to malfunction.
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If this is the case, it may be a problem with the control switch, that is, the start time of the control is set.
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Midea's air conditioner is normal, and the compressor starts suddenly a few minutes after the machine is fixed, indicating that the internal temperature has risen again, so the compressor is turned on again.
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This should be working normally, that's why it will be activated.
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The air conditioner is normal, after dozens of minutes of shutdown, the compressor starts suddenly, it may be that you start it regularly, and it will start.
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1. Power supply voltage problem.
2. The high-voltage protective shrapnel is not well connected.
3. The internal thermal protection shrapnel of the compressor is in poor contact, and the pipe temperature problem is eliminated. You say that when there is a fault, how many times can not be restarted, and in the middle of the night, I judge that it is a voltage problem, because the residual voltage of each air conditioner inspection stove is still error, and it is impossible to be consistent, so other air conditioners are still working normally, this problem is very good to judge: when you can't start the air conditioner, you will immediately turn off all the electrical appliances at home and then try to start the air conditioner, if it still can't get up to eliminate the power problem.
Scenario two. If it is a problem with other problems, the high-voltage protection shrapnel is not in good contact, and you try to short-circuit the high-voltage switch when there is a problem with the air conditioner.
Situation three. The internal thermal protection shrapnel of the compressor has poor contact and problem judgment, and when the air conditioner has a problem, use a multimeter to measure whether the compressor has a resistance value to know. If the pipe temperature problem is not returned, it will be good and bad, unless the pipe temperature and circuit board are not in good contact.
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It may be that Midea's inverter air conditioning compressor is faulty. The air conditioner compressor usually stops as soon as it starts, and there are usually the following reasons:
1.Refrigerant leakage: If the compressor starts normally for a moment, but then shuts down immediately, it is possible that the refrigerant leak is causing the low pressure sensor to be too sensitive, thinking that the refrigerant is insufficient and disabling the compressor.
2.Circuit Failure: Improper installation or use may damage the air conditioner circuit board, causing the error signal to be received and stopped immediately after starting.
3.Unstable operating voltage: Air conditioning compressors require a large amount of current to start, and unstable voltage may make the start-up process fail and stop working.
4.Compressor failure: Damage to the internal components of the air conditioner compressor such as capacitors, motors, or windings may also cause the compressor to fail to start effectively.
If you don't know how to rule out these problems, it is recommended that you contact a professional air conditioner maintenance personnel for inspection and repair. At the same time, please note that before the first use of the wall-mounted air conditioner after installation, it should be debugged to ensure its normal operation.
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Summary. Hello dear There may be several reasons for this:1The external machine is exposed to sunlight and ventilation, etc.
The condensation effect is not good, the exhaust pressure is too high and the machine stops, and the obstruction needs to be removed. 2.Abnormally high voltage or low voltage, the compressor cannot be started, the current is too high, and the overload protector is activated and stopped.
3.Wrong wiring. 4.
The capacity of the power grid is insufficient, and the voltage drop of the line is large
Midea's inverter air conditioner does not show fault, and the compressor will turn on and stop, what is the reason?
Hello dear There may be several reasons for this:1The external machine is well exposed to the sun, and the ventilation is blocked. The shaft does not condense well, the exhaust pressure is too high and the machine stops, and the obstacle needs to be removed.
2.Abnormally high voltage or low voltage, the compressor cannot be started, the current is too high, and the overload protector is activated and stopped. 3.
Wrong wiring. 4.The capacity of the fiber belt of the electric network is insufficient, and the voltage drop of the line is large
It is also possible that there are several reasons: 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. Participate in and dismantle the pressure gauge to judge and eliminate, and re-judge the new system processing.
4. Dust and fouling of the evaporator or filter screen. The airflow becomes smaller, the system pressure and the opening temperature of the excavation shed are unstable, and the cleaning evaporates.
The above reasons may lead to the Midea inverter air conditioner does not show failure, and the compressor will turn on and stop.
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What is the reason why the Midea inverter air conditioner, after starting the internal unit, the external fan compressor stops after 3 seconds of starting.
Dear, I am glad to explain to you what is the reason for the shutdown of the external fan compressor after the internal unit is startedAnswer: This phenomenon can be divided into two situations, one is normal shutdown, and the other is abnormal shutdown.
1. Normal shutdown, the air conditioner will stop when it reaches the set temperature normally, and then start it after the room temperature rises, and then stop when it reaches the set temperature. 2. Abnormal shutdown generally refers to the problem of the air conditioner, and the basic problems are as follows: Lack of fluorine or too much fluorine, the lack of refrigerant in the air conditioner will lead to compressor thermal protection; The power supply voltage is insufficient, and the mains power supply is unstable; The starting capacitance of the compressor is bad, and the sensing probe of the internal machine is bad; The external radiator is dirty or has poor heat dissipation.
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After the air conditioner is turned on, the compressor stops as soon as it starts, and the song oak stops for the following reasons.
1. If the temperature of the air conditioner is adjusted too high, the compressor will reach the predetermined temperature not long after it starts, and the compressor of the air conditioner will automatically stop the refrigeration work.
Second, the thermostat of the air conditioner is faulty, and the compressor of the air conditioner is controlled by the thermostat or stops working, so if the thermostat fails, it will lead to the inability to start the compressor of the air conditioner, in this case, the thermostat of the air conditioner needs to be replaced to resume normal use.
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The probable cause is the phenomenon of the compressor protection device tripping. Compressor overload protection will trip, indicating that the high pressure of the hidden macro system is too high or the overheating current is too large.
Causes and elimination of high pressure and overheating:
1. Too much refrigerant. Reduce the refrigeration dose appropriately.
2. Poor heat dissipation. Check whether there is dirt in the condenser pipe, and clean the condenser with care.
3. The pipeline system is wide and voltically blocked. Refer to the pressure gauge to judge, eliminate, and re-process systematically.
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.
There are many other possibilities, and it is recommended to check it out with a professional maintenance person.
x Measure the high and low pressure of the air conditioning system, the engine should be running at idle speed, and the ambient temperature should be measured at 35. Normal high pressure pressure should be or 190-250lbf in2); Normal low pressure should be between or 20-35lbf in2). If the low pressure is higher or lower than this range, it means that the expansion valve is not properly adjusted. >>>More
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