The air conditioner can t be started because of the low voltage, so is there any way to make it run

Updated on technology 2024-05-15
17 answers
  1. Anonymous users2024-02-10

    As a temporary solution, if in general, the voltage of the mains is relatively low, and the fluctuation of the voltage is more regular with time, not suddenly much higher and suddenly much lower, that is, it is not necessary to take automatic control, but can be manually controlled, that is, you can use a contact voltage regulator without a voltage regulator, also called an auto-transformer, autotransformer, its input 220V, output 0 250V adjustable. Because household appliances do not have high requirements for voltage stability, they can work relatively normally at about 190 250V, and color TVs can even work at 150V. For household appliances that consume a lot of power such as air conditioners, if a voltage regulator is used, the capacity should be relatively large, more expensive, and the noise may be large.

    If you use a voltage regulator, it is more suitable, because the mains voltage is low, the range of voltage regulation is wide, so its capacity should be larger than that of household appliances, according to the input power of your air conditioner, you can choose 1 or 2 or 3kva. If the mains voltage is too low and the maximum is still insufficient, it can be reversed, that is, the output end of the voltage regulator is connected to the mains power supply, and the power supply end is connected to the load, and the pointer of voltage regulation is usually placed near 220V, and the voltage of the load is adjusted to the direction of the small indication of the pointer. For safety, it is necessary to connect a voltmeter to monitor the fluctuation of the load voltage and adjust it in real time.

    If the voltage is always low and fluctuates greatly, it should be kept in a relatively high state, such as 220 235 volts, to cope with the possible drop in voltage. This solution is more economical and practical, and it is not inconvenient. FYI.

  2. Anonymous users2024-02-09

    There is nothing that can be helped. If the regulator is added, it will have some effect, but it will not completely solve the problem. If you continue to do it, it will only cost the people and money.

    If you really can't bear it, buy an inverter, which can start at a lower pressure and run normally!

  3. Anonymous users2024-02-08

    It cannot be modified, and the voltage must be increased. Such as installing a voltage regulator.

  4. Anonymous users2024-02-07

    Using a fan is both environmentally friendly and trouble-free.

  5. Anonymous users2024-02-06

    Buy a voltage regulator The voltage is useful within a certain range, and it is useless if it is too low.

  6. Anonymous users2024-02-05

    The reasons for the normal low pressure and low pressure of the air conditioner may be as follows.

    1. What happens to the normal low pressure and low pressure of the air conditioner?

    1. The high pressure is too high: the condensation area is too small; The condenser is too dirty inside and out; The cooling fan speed is too slow, the air volume is insufficient, or the fan stops running; too much system refrigerant; Excessive oil storage in the system; Blockage or partial blockage on the high-pressure side.

    2. The high pressure is too low: there is too little refrigerant in the system; The system is blocked; Poor compression performance of the compressor or failure of variable displacement.

    3. Low pressure is too high: the expansion valve (or throttle pipe) is too large; too much system refrigerant; Poor compression performance of the compressor or variable displacement failure; The external circulation is not closed (or not tightly closed), or there is leakage of hot air, hot air and hot water.

    4. The low pressure is too low: the opening of the expansion valve (or throttle tube) is too small; Too little refrigerant in the system; Blockage of expansion valves or low-pressure side; The compressor is turned on for a long time, or the variable displacement fails.

    2. What is the reason for the low pressure and low pressure of the refrigerator?

    1. When the air conditioning pressure gauge detects that the low pressure of the air conditioning system is higher than the normal value, and the high pressure is lower than the normal value, the air conditioning refrigeration will never achieve the effect of normal air conditioning. According to the formula, the general cause of failure is the wear and tear of the air conditioning pump, which leads to a drop in power. In this case, it is often necessary to replace the compressor to solve the problem.

    2. When the high and low pressure of the system is detected to be higher than the normal value, according to the formula, the common fault is that there is excessive addition of air or refrigerant in the system. At this point, it is necessary to evacuate again and then add the appropriate amount of refrigerant to solve the problem. However, there is also a situation where the heat dissipation is not good, especially when the ambient temperature is relatively high, which often leads to worse heat dissipation.

    The causes of this failure are generally clogged fins, dirt, insufficient speed of the cooling fan, etc.

    3. When the air conditioning system is working, if the pressure gauge pointer keeps shaking, it means that there is moisture in the system. To solve this problem, it is generally necessary to vacuum again, and the evacuation time must not be less than 15 minutes. If necessary, the drying bottle needs to be replaced to completely drain the water from the system.

    4. When the high and low pressure are low, there are two possibilities: one is the system blockage. When the system is blocked, throttling will occur in the blockage area, and there will be a significant temperature difference in the throttling area.

    Problems can be detected by touching them with your hands. There is also the possibility of a refrigerant leak, resulting in a lack of refrigerant. This is fairly common.

    In this case, it is necessary to use an air conditioner detector to find out the location of the air leak, or replace or repair it.

    To sum up, the reason for the normal low pressure and low pressure of the air conditioner may be as mentioned above, and it can be repaired and repaired.

  7. Anonymous users2024-02-04

    If the mains voltage is too low, it is out of the operating range of the air conditioner. The under-voltage protection circuit of the air conditioner starts and stops.

  8. Anonymous users2024-02-03

    1. Low voltage will cause the machine to fail to operate normally, and frequent switching will increase the number of current impact clicks and affect the life of the machine.

    2. The voltage is too low, and the electrical appliance still wants to exert its due power, so it has to increase the current, and the current is too large, which will make the electrical equipment heat up and burn out. The current continues to rise until it burns out the motor.

    3. If the voltage is too low, it will damage the air conditioner, especially for the inverter air conditioner, which can easily cause the air conditioner to fail to start normally or even the main control components to be burned, and the long-term low-voltage power supply will also have a great impact on the life of the fan motor and compressor.

    4. The voltage is too low and the air-conditioning compressor does not work, which has a certain impact on the air-conditioning compressor, because the voltage is too low, the compressor operating current will increase, the compressor thermal protector will act, cut off the power supply, and the compressor will stop running, and if it is in a low-pressure state for a long time, the compressor will be damaged.

  9. Anonymous users2024-02-02

    How to solve the problem that the fixed-frequency air conditioner cannot be started when the voltage is low? 1. There are three main solutions to the low voltage air conditioner, the low voltage causes the air conditioner to start when in use, and the temporary solution is that it is not necessary to take automatic control, but can be simply controlled manually, with a contact voltage regulator, also called an auto-transformer, autotransformer, its input 220V, output 0-250V adjustable, generally according to the air conditioning power to 2 times to choose the capacity of the voltage regulator. If the mains voltage is too low and the maximum is still insufficient, it can be reversed, that is, the output end of the voltage regulator is connected to the mains power supply, and the power supply end is connected to the load, and the pointer of voltage regulation is usually placed near 220V, and the voltage of the load is adjusted to the direction of the small indication of the pointer.

    For safety, it is necessary to connect a voltmeter to monitor the fluctuation of the load voltage and adjust it in real time. 2. The low voltage causes the air conditioner to not start when in use, and a voltage regulator can also be installed, which is sold in general electrical shopping malls and specialty stores. If you want to permanently solve the situation that the air conditioner cannot be started due to low voltage, it is best to change the air conditioner, that is, to buy an inverter air conditioner with more advantages and smaller starting current, which can be started at a minimum of 150V.

    3. The last method is that if the residence is in a residential area and the voltage near it is low, it is recommended that everyone should join forces to find the power supply department and let it solve it, such as increasing the capacity of the transformer, increasing the wire diameter of the power supply wire, and changing it to three-phase power supply if it is a single-phase power supply, etc., which is justified, and the national power supply rules and other laws and regulations have provisions.

  10. Anonymous users2024-02-01

    1. Freon is not enough, also known as "refrigerant" is not enough. 2.The power supply voltage is insufficient.

    3.The power of the air conditioner is not enough to cool down. 4.

    The outside temperature is too high, causing the air conditioner to not refrigerate. Recommendations:1.

    If the freon is not enough, this is normal. As usual, there is an old air conditioner that has been used for three or four years now. It's not that the air conditioner doesn't cool at all, but that the cooling effect is not good enough.

    This is because old air conditioners use freon as a refrigerant, which will volatilize after long-term use. In addition, freon leakage and rigidity problems caused by improper arrangement cannot be eliminated. Management Essentials:

    The problem of the air conditioner not cooling can be managed by adding refrigerant. 2.The power supply voltage is insufficient, the power supply voltage is unstable, and the rigid demand voltage usually occurs, which is easy to occur during the peak period of electricity consumption.

    We have to start by providing a stable voltage to manage this problem and maintain a normal supply voltage. 3.The air conditioner does not have enough power to not cool, which is also one of the common reasons for not cooling.

    But there are many reasons for this kind of non-refrigeration, such as: small power air conditioning duct area of the room, some rooms seem to match the power of the air conditioner to the room area, but because the room is relatively closed, there is likely to be a heating source in the room. At this time, the required cooling capacity is required to make the power space of the air conditioner; The use of the condition needs to be changed; Enhance the intensification of use; Eliminate the heat source in the use of air conditioning and so on to control the problem of non-cooling.

    4.The outside temperature is too high, causing the air conditioner to not refrigerate. This kind of non-cooling situation is common when our outdoor unit is installed in a relatively closed space or the temperature around the outdoor unit is too high, so it is very easy to cause the air conditioner to not refrigerate due to poor circulation in the small space where the outdoor unit is located, resulting in no measures to let the heat emitted by the radiator flow away; It is generally believed that when the outdoor temperature exceeds 43 degrees, it is difficult for most air conditioners to report indoor heat to the outdoor radiator, which will also cause the air conditioner to not cool, so it is necessary to change the way the outdoor unit is used (away from high temperatures or to make it easier for the air around the outdoor unit to circulate).

    5.The voltage regulator can also be set due to the low voltage causing the air conditioner to fail to start when in use. 6.

    If your residence is in a residential area and the voltage of the same type is low, it is recommended that you work together to go back and forth to the power supply department and let it manage, such as increasing the capacity of the transformer, increasing the wire diameter of the power supply conductor, and changing the single-phase power supply to the three-phase power supply.

  11. Anonymous users2024-01-31

    Yes.

    Low voltage has an impact on the air conditioner, due to insufficient power supply voltage, it will cause the condenser fan, evaporator fan can not operate normally, poor heat dissipation, if the compressor clutch coil because of insufficient voltage, it is possible that due to insufficient torque, the air conditioner will have clutch slippage, overheating and burning.

    Unstable voltage causes the air conditioner to not refrigerateOne is to buy a voltage regulator, and the other is to buy an inverter air conditioner.

    One of the characteristics of inverter air conditioner is low voltage start, 220 normal working voltage inverter air conditioner can actually start and run in the case of 110V, but the performance will be slightly worse, but at least it can solve the problem of heat loss.

    Fixed-speed air conditioners need enough voltage to generate current when starting, so it is easy to shut down when the voltage is low.

  12. Anonymous users2024-01-30

    1. The air conditioner can't be turned on but the remote control has a display, which is likely to be due to the state of voltage protection of the outdoor unit.

    At this time, you can cut off the power supply first, then open the cover of the indoor unit, find the emergency switch on the right side and poke it a few times, and then turn on the power supply, so that it is basically dealt with. You can also check the air switch to see if it is caused by tripping, and if it is tripped, it would be good to pull it back.

    2. The air conditioner can't be turned on but the remote control has a display, which is probably because we pressed the lock key function of the air conditioner and encountered this problem.

    The solution is also very simple, we only need to press and hold the unlock function button of the remote control of the air conditioner, and the air conditioner can be used normally.

    Summary: There will be many reasons why the air conditioner can't be turned on, you should be patient and carefully check which part of the reason, if you really can't get it, it is recommended to find a professional maintenance personnel to check.

    If there is garbled or freeze on the air conditioner screen, you can press the reset button to remove it, or it may be caused by low battery power.

    The temperature is not displayed, and the temperature is not displayed in the air supply or automatic mode, which may be caused by the receiver head being broken or not working properly due to moisture. It is necessary to check the transmission of the remote control signal.

    Point your digital camera at the transmitter and press any button to see if there is an infrared signal, the mode is incorrect, or the temperature setting does not meet the conditions for powering on.

    When cooling, the set temperature should be less than the indoor temperature. When heating, the set temperature should be greater than the indoor temperature.

  13. Anonymous users2024-01-29

    If the voltage is lower than 160 volts, there is no choice but to apply for expansion. If the voltage is around 190 volts, it is not good to use a voltage regulator.

  14. Anonymous users2024-01-28

    Add a pressure regulator or change the starting capacitance capacity of the compressor to a larger size.

    If the voltage is low for a long time, it is recommended to add a voltage regulator, which is more secure and will not cause accidents.

    If the capacity specification of the starting capacitor of the compressor is changed, it is easy to cause the compressor to burn out when the voltage fluctuates to a high point.

  15. Anonymous users2024-01-27

    There is no way to do this, when the voltage is low, the inverter air conditioner can be started, and the fixed frequency is not good, only the pressure can be increased.

  16. Anonymous users2024-01-26

    Add a voltage regulator that others can't use, you can use it.

  17. Anonymous users2024-01-25

    1.There are three main solutions to the failure of low-voltage air conditioners. The voltage is too low to cause the air conditioner to fail to start when in use.

    The temporary solution is that it is not necessary to take automatic control, but can be controlled manually. Contact voltage regulators, also known as autotransformers, have an input of 220V and an adjustable output of 0-250V. In general, the capacity of the regulator is selected according to the power of the air conditioner to 2 times.

    If the mains voltage is too low and it is still insufficient when adjusted to the maximum, it can be reversed, that is, the output end of the voltage regulator is connected to the mains power supply, and its power supply is terminated to the load. Usually the pointer of the voltage regulator should be placed near 220V, and the load voltage should be increased in the direction of the pointer being small. To be on the safe side, it's a good idea to connect a voltmeter to monitor fluctuations in the load voltage and make adjustments in real time.

    2.The voltage is too low to cause the air conditioner to fail to start when in use. You can also install a voltage regulator, which is sold in general electrical shopping malls and specialty stores.

    To permanently solve the problem that the air conditioner cannot be started due to low voltage, it is best to change to an air conditioner, that is, buy a more advantageous inverter air conditioner with a smaller starting current, which can be started at a minimum of 150vv. 3.The last method is that if your residence is in a residential area and the voltage is low nearby, it is recommended that you join forces to find the power supply department and ask them to solve the problem, such as increasing the capacity of the transformer, increasing the wire diameter of the power supply conductor, and changing to three-phase power supply if it is a single-phase power supply.

    There is a reason for this, and there are provisions in national laws and regulations such as the rules for the supply and consumption of electricity.

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