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There are many reasons why the air conditioner can't be turned on: the first remote control reason: 1. The screen is garbled or frozen.
Press the reset button to disarm, or the battery is low. 2. The temperature is not displayed. In air supply or automatic mode, the temperature is not displayed.
3. If the receiving head is broken or cannot work normally due to moisture, check the transmission of the remote control signal. Aim your digital camera (mobile phone is also acceptable) at the transmitter and press any button to see if there is an infrared signal emitted. 4. The mode is incorrect, or the temperature setting does not meet the boot conditions.
When cooling, the set temperature should be less than the indoor temperature, and when heating, the set temperature should be greater than the indoor temperature. 5. Low battery power will cause the remote control distance to be short or unable to be remotely controlled. It is recommended to remove the battery when the air conditioner is not in use, and reinstall or replace it when in use.
The second reason for the power supply: 1. The power supply is not connected well or there is no power, the power conductor socket is not in good contact, or the power conductor wire diameter is thin or aging. 2. The power supply voltage is low.
Starting voltage of fixed-frequency air conditioner: 187V, voltage fluctuation range: 198-242V, starting voltage of inverter air conditioner:
156V, voltage fluctuation range: 176-264V, it is recommended to install a voltage regulator at home. The third point of protection function:
1. Delay protection. In order to protect the life of the press, a protection circuit is designed in the control circuit of the air conditioner computer board, and the press is started after a delay of 3 minutes. 2. Prevent heating and cold air.
When the air conditioner is heating, when the temperature of the indoor unit coil is lower than a certain value, the internal unit does not run, and generally after 3-5 minutes of preheating, the internal unit starts to work. 3. The computer program of the air conditioner is chaotic, which makes the machine unable to work immediately. 4. Function lock protection.
Some brands or models have a child lock function, if you are in lock mode and cannot perform any operation, you can refer to the manual to cancel. If the above problems are still not turned on, your air conditioner may have a functional failure, please call Midea's after-sales service**4008899315 and let it arrange a special person to repair!
If you still have questions, you are welcome to ask questions to the company in the United States; I wish you a smooth work and a happy life!
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Check to see if the pressure is normal.
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Is the wiring right, and whether the voltage on the press is normal.
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Reason 1: The most common reason why the air conditioner compressor does not work is that the air conditioner has been used for too long, resulting in the lack of freon** inside the air conditioner, which causes the air conditioner compressor to not work.
Maintenance method: Replenish the freon for the air conditioner, so that the compressor can make full use of the freon for refrigeration.
Reason 2: The power supply line card of the air conditioning compressor is burned out, which is generally because the compressor works under load for a long time, and the current is too large during operation, and the temperature on the surface of the air conditioning compressor rises, resulting in the power supply line card being burned out.
Solution: The air conditioner compressor does not work because the power supply line card of the compressor is burned out, and it needs to be replaced with a new line card.
Reason 3: When the air conditioner is in the state of locking function protection, it will also cause the air conditioner compressor to not work.
Solution: When the air conditioner is in the locking function state, no operation can be carried out, and the compressor is in a working state for a long time, which will cause the insulating core performance of the compressor to be reduced, and the resistance of the coil will become smaller, so it is necessary to unlock the locking function according to the instruction manual of the air conditioner.
Reason 4: The power cord of the air conditioner is not plugged in properly, or the contact of the power wire is poor, etc., which will cause the air conditioner compressor to not work.
Solution: The power cord of the air conditioner is not plugged in properly, resulting in the air conditioner compressor not working, and the power cord of the air conditioner needs to be readjusted.
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Reason 1: Freon is insufficient.
In general, it is caused by long-term operation under the shortage of Freon; Mainly due to improper installation, the leakage in the system is due to insufficient refrigerant, which is the root cause.
Reason 2: The air is not discharged.
During installation, the air in the system was not discharged, and there was ice blockage from time to time, and the load on the compressor increased. The compressor temperature increases due to the increase of the compressor load, and the refrigeration oil will deteriorate for a long time at high temperature, which can not play the role of lubrication and cooling, which promotes the further increase of the compressor temperature, and the coil is reduced due to high temperature insulation, resulting in compressor damage.
Reason 3: Function lock protectionSome brands or models have child lock function, if you are in lock mode and cannot perform any operation, you can refer to the manual to cancel; The compressor works at high temperature for a long time, resulting in the reduction of insulation, the resistance of the coil is too low, the starting current increases, and the temperature of the compressor rises instantaneously.
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It may be that the motor is broken and repaired, which is better.
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Whether the air conditioner starts or does not start, first confirm whether the external unit has power supply? If the external unit does not have the power supply, it is basically that the electricity is not connected to the external unit, and the main test is not good for the power supply of the internal machine? If the power supply is good, it may be that the power of the circuit board is not out, just check the circuit board!
In addition, if the external unit has electricity, it generally does not start mainly for the following reasons: this situation is generally caused by the unstable power supply of the user, or the high temperature protection or low temperature protection of the indoor evaporator; During the peak period of electricity consumption, resulting in insufficient power, Midea air conditioner is a powerful electrical appliance, so it is difficult to start, it is recommended that users buy voltage regulators, etc., it is recommended to unplug and wait for 5-10 minutes before restarting.
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I haven't used this before, but I use Gree's at home, automatic power-saving all-round king-uzun, equipped with a two-stage inverter compressor, high efficiency and energy saving, and a good helper for power saving.
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Midea's air conditioner compressor does not start, which is caused by the compressor's starter being broken. (Replacing it with a new one will do).
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Which friend is troublesome, what is the reason why my Midea air conditioner still can't start after replacing the capacitive compressor.
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If Midea's air conditioner doesn't turn on, it may be a problem with the remote control of the air conditioner. The remote control of the air conditioner cannot transmit a normal signal. Check if the remote control is damaged or dead.
If it's not a problem with the remote control, it's possible that there is a problem with the air conditioner compressor. If the air conditioner is used for a long time, the compressor will age, resulting in the inability to turn on.
Midea air conditioner failure causes and solutions:
1.Try turning the computer on and off first, check if it is a problem with the remote control, and see if the battery of the remote control is charged.
2.There may be a problem with the board. Inspect outlets, circuit boards, fans, and compressors.
3.The compressor shaft or motor windings are burned out. You can look for such a plug from the desktop version, and then look for the sensors line by line.
4.The starter relay or starter capacitor is damaged. It means that the indoor unit of the air conditioner is too dirty. Turn off the mains power, open the lower cover, and take out the filter for cleaning.
5.The thermostat fails, the contacts cannot be closed, and the compressor circuit cannot be switched on, resulting in the compressor not starting.
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Midea air conditioner compressor does not start the reason:
The fuse in the special circuit of the air conditioner is blown out, or the contact of the power switch is poor, or the power supply is out of phase. At present, many users use a power supply in combination, and the power supply is abnormal due to the abnormal operation of other electrical appliances.
The power supply used in the air conditioner is too low, and when the voltage is less than 10% of the normal voltage of the single phase (220V), that is, 198V or below, it is difficult for the refrigeration compressor in the air conditioner to start.
If the knob on the temperature controller is not dialed to the appropriate position, if it is dialed to a higher position, when the power is connected, the temperature in the air-conditioned room has not reached the upper limit of the set temperature (the temperature at the starting point), and the compressor cannot be started.
High pressure relay action, such as the condensing pressure is too high, so that the high pressure relay action stops the operation of the compressor.
Low-pressure relay action, such as insufficient refrigerant in the refrigeration system, resulting in the compressor suction pressure is too low, so that the low-pressure relay action stops the operation of the compressor.
When the current of the compressor and fan motor is too large, the power supply is cut off by the overload protection relay.
Exclusion Method:
Check the cause of the fuse inside and outside the air conditioner first, and take measures to prevent it from blowing out again, and adjust and repair it in time. It is recommended that households with air conditioners should set up a dedicated power supply to prevent this kind of failure.
If the local power supply voltage is often in a low state, it should be used with reliable power supply regulation, and at the same time, it is recommended that families with more household appliances use a special power supply.
Adjust the knob on the temperature controller to the desired position, that is, adjust it according to the temperature required by the air-conditioned room.
Check the cause of the high condensation pressure and rule it out so that the condensing pressure can be restored to normal pressure.
Check the cause of the refrigerant shortage in the refrigeration system and rule it out so that the suction pressure can be restored to normal pressure.
Check the cause of overload of compressor motor and fan motor, and eliminate it; Press the reset button of the protection relay.
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Hello, there are the following reasons why Midea's air conditioner compressor does not work, (1) The compressor motor burns out. Exclusion method: Replace the compressor.
2) The moving parts of the compressor are stuck and cannot be started running. Troubleshooting: Repair the compressor moving parts or replace the compressor.
3) The compressor starting relay is damaged. Exclusion method: Replace the compressor starting relay.
4) The compressor overload protector jumps out and cannot be reset. Elimination method: Check the cause of the compressor overload protector tripping, and resume the compressor operation after elimination.
5) The thermostat is out of order and the contacts are disconnected. Exclusion method: Replace the thermostat.
6) The compressor capacitor is punctured. Troubleshooting: Find out the cause of the breakdown of the compressor capacitor and replace it with a new one after troubleshooting.
7) The compressor circuit is incorrectly wired or the line contact is poor. Elimination method: Reconnect the compressor circuit according to the circuit diagram.
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Whether it is in summer or winter, the most popular household appliances should belong to the air conditioner, although the cold watermelon, drinks, and popsicles in the refrigerator can be solved quickly in the hot summer, but after eating, you will still feel hot and dry, but as long as you turn on an air conditioner in the room, you can live comfortably for a day, and this is also the case in the cold winter, even if it is snowing outside, it is still warm as spring in the room with the air conditioner on, so what should I do if the air conditioner compressor does not start when the air conditioner is turned on? Here's a closer look at how to resolve this issue.
The solution to the air conditioner compressor not starting.
The air conditioning compressor is one of the core components of the air conditioner, if there is a problem, it will have a great impact, and the reason why the air conditioning compressor does not start, the general impact is caused by the long-term operation in the case of insufficient refrigerant, because of improper installation, the root cause of the lack of refrigerant leakage in the system, and this solution is to supplement the refrigerant for the air conditioner.
The reason why the air conditioner compressor does not start may also be that when it is installed, the air inside is not discharged, and there is a phenomenon of ice blockage, which leads to an increase in the load of the compressor, and the increase in the load of the compressor causes the compressor temperature to increase, and the refrigeration oil will deteriorate for a long time at high temperature, and it cannot play the role of lubrication and cooling, so the temperature of the compressor is further increased, and the coil is reduced due to high temperature insulation, resulting in damage to the compressor. Therefore, the quality should be strictly controlled during installation.
If it is in lock mode, there is no way to operate capriciously, this can be removed with reference to the manual, the compressor works at a long-term high temperature, resulting in reduced insulation, the coil resistance is too low, the starting current increases, and the compressor temperature rises instantaneously.
If the compressor does not start, there may be a fault of the electrical line, to check and repair, the differential pressure relay is disconnected, the high voltage interrupter is disconnected, the differential pressure relay reset button is pressed down and the pressure change can be used to close the contact or readjust the disconnection pressure.
Inspection steps for household air conditioner compressor not starting:
1. Check whether the 220V power supply has reached the terminal of the junction box of the outdoor unit, if not, it is the setting of the indoor unit is wrong or the control board is faulty.
2. When there is electricity, check whether the capacitor of the compressor is short-circuited, open-circuited or the capacitance value has been degraded.
Normal, check the junction box of the compressor, measure whether the resistance of the three binding posts and the two windings of the motor is normal, and whether the external or built-in thermal protector has been disconnected. If there is an open circuit or short circuit in the motor winding, the only way to replace the compressor is to replace it; If the thermal protector is open, the external one can be replaced with a new one, and the built-in one can only replace the compressor.
Normally, when the power is turned on, it only makes a buzzing sound and cannot start, it is the compressor cylinder and the shaft, and only the idea is to let it break free and turn up (separately), otherwise it is also a change of head.
The resistance value of the motor winding varies according to the brand and model, such as the running winding 3, the starting winding 4, and the R-S of Midea 32GW is 7. The thermal protector is ultra.
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1. The compressor has no refrigerant, add refrigerant.
3. The compressor is damaged, replace the compressor.
4. The thermostat is broken, replace the thermostat.
5. The temperature sensor is broken, replace the sensor.
6. The sensor position is not in place, and the sensor is re-fixed.
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