Why does the air conditioner start blowing hot air as soon as it starts, and then it starts blowing

The air conditioner just started blowing hot air.

It is the air in the trachea, because after a day of sunbathing, the air temperature will be a little hot, and it is easy to feel hot when it blows out, and then the compressor works after the air conditioner operates, and there is naturally a cold air.

This situation is very normal, the main thing is to restart after the air conditioner stops, it is easy to have this situation, and you don't need to worry too much.

There are generally two possibilities for this situation:

1. Because of the weather, the general air conditioner needs to be constantly defrosted when it is lower than 5 degrees (outdoor temperature), and the appropriate temperature for human perception is about 25 degrees, that is to say, to feel the heating effect is good, the air conditioning temperature must reach more than 25 degrees to feel warm. Generally, the machine can only reach about 15 degrees.

2. The indoor temperature is still high, and the air supply is not up to the anti-cold air standard, and the internal unit continues to supply air, and the wind at this time is room temperature, which will feel cold.

Hope it helps.

This is the case that the air conditioner compressor has not yet started to turn left, and the air conditioner can work normally after one to two minutes.

Why does the air conditioner start blowing hot air as soon as it starts, and then it starts blowing cold air? Because the air conditioner has just started to be cold, the air has not yet been produced, so the ripening is the hot air at room temperature, and when the compressor works for a period of time, the air conditioner will become a refrigeration equipment, so what is blown out is cold air.

Cause Analysis:

1. Improper use or maintenance of air conditioners cause air conditioners not to heat: According to experts, about eighty percent of air conditioning heating failures are not machine problems, but improper use or improper maintenance of the machine by air conditioning users. When using air conditioning for heating in winter, pay attention to the airtightness of the room, if the outdoor unit has frost and icing, do not use hot water to defrost and ice, you should stop using the air conditioner, contact the maintenance personnel for inspection and maintenance.

2. If the air conditioner does not heat up due to too much dust: if the air conditioner does not remove dust for a long time, it is easy to make the air filter screen accumulate too much dust, and the air vent inside and outside the air conditioner is blocked by foreign objects. The air conditioner should be maintained frequently and the air filter should be cleaned regularly so that the air outlet can supply air normally.

3. The lack of fluorine in the air conditioner causes the air conditioner not to heat: now most air conditioning users use heat pump type or heat pump plus auxiliary electric heating type air conditioner, the working principle of these two air conditioners is to absorb heat from the outdoor air when the freon evaporates, when the outdoor temperature is low, the temperature difference with the evaporation temperature of freon is small, the heat exchange effect becomes worse, and the hot air is less. Therefore, if it is an old model, the service life is longer, the wear degree of the compressor is larger, and when the outdoor temperature is below 0, the heating effect of the air conditioner is difficult to be satisfied.

In addition, if the nut at the copper pipe horn is not tightened during the installation of your own air conditioner, or the machine has been moved, it can be considered as a lack of fluorine; In addition, line control faults are also common, for example, if the external unit is not working, it is most likely due to capacitance, temperature probe or motherboard failure. If the air conditioner is fluoride, contact the air conditioner after-sales personnel as soon as possible to solve the problem.

4. The external environment of some air conditioners is also a factor that causes air conditioners not to heat: the temperature in Dalian is relatively low in winter, if the outdoor temperature is too low, the heating effect will be significantly worse, and the actual heat production is not enough. The usable heating area of the air conditioner is smaller than the actual area of the room, which will lead to factors such as insufficient heating of the air conditioner.

Air conditioning system.

The refrigerant leakage of a certain degree of DU occurred in the BAI pipeline, or it was caused by the abnormal return of the DAO motor of the indoor machine.

When a certain degree of leakage of refrigerant in the pipeline of the air-conditioning system, the suction temperature of the air-conditioning compressor will rise, the exhaust temperature will rise, and the refrigerant flow in the evaporator is insufficient, resulting in a rapid decrease in the temperature of the heat exchanger coil after the indoor fan motor is opened, and when the coil temperature is reduced to the temperature value of the anti-cold air protection set by the air-conditioning program, the indoor fan will stop running, and the air outlet temperature of the air conditioner indoor unit will change from high to low before the indoor fan motor stops running, and it feels hot for a while and cold for a while.

When the indoor fan motor or motor capacitance is abnormal, the air volume of the indoor unit becomes smaller, the heat of the indoor unit heat exchanger can not be effectively brought into the room, and the air conditioning compressor will be shut down for excessive exhaust pressure protection or overload protection during operation, and the hot air is blown when the compressor is running, and the wind blown out when the air conditioning protection shutdown compressor stops running is cold air.

In the event of such abnormal operation, it is recommended to report directly to the air-conditioning manufacturer for after-sales repair, and the maintenance personnel will overhaul and eliminate the fault on site.

If the hot air is blown for 40-50 minutes, and the cold air is blown for 20-10 minutes, this is a normal phenomenon.

Inner cream. If the hot air blowing time is short, it means that there is a problem with the unit. This needs to be repaired by professional personnel, because there are many reasons for this problem, and professional technicians need to eliminate it.

It is very likely that the capillary is clogged, causing the refrigerant to not continue to work.

Use 220V voltage air conditioner from simple to complex.

1 The voltage is lower than 220V, resulting in low pressure protection after the compressor is started for a period of time. (Normal 200V is the most exclusive air conditioner.)

The bottom line voltage, which you can measure the operating voltage of the air conditioner) 2 tube temperatureRoom temperature sensor issues.

3. The starting capacitance capacity of the compressor is reduced or the performance is poor, resulting in no operation for a period of time (listen to whether there is intermittent AC contact sound of the external unit).

4 Lack of refrigerant.

5 There is a problem with the electric control board or the four-way directional valve.

6 Compressor Problems.

Is it a room temperature wind? Or does it turn into a hot wind?

If it is changed from cold air to room temperature air, first check whether the fan of the outdoor unit is running, and then observe whether the compressor is running normally. If the refrigeration temperature set by the remote control cannot be executed, please repair and check whether the "tube temperature sensor" is faulty.

If it is converted to heating and sent high-temperature air in the cooling state, it is possible that the circuit of the air conditioner control four-way valve is faulty.

Ming air conditioners are fixed-frequency air conditioners.

When the temperature is higher than the set value, the compressor operates, sending out cold air, and the room temperature decreases.

When the temperature falls below the set value, the compressor stops running. The wind that comes out is the hot air.

When using this air conditioner, do not put the air outlet at the area where people are moving, it will be very uncomfortable.

A variety of faults can cause the air conditioner to cool down for a few minutes, followed by natural or hot air.

1. The voltage is too high or too low.

2. Poor heat dissipation of the outdoor unit.

3. Insufficient or too much refrigerant.

4. There is a problem with the air conditioning control circuit or a fault is detected, resulting in the shutdown of the outdoor unit.

5. The compressor current is too large or the temperature rises too high during operation due to mechanical failure, resulting in compressor thermal protection.

Hello dear, the reason why the air conditioner will blow cold air after heating for a while: 1. The internal machine is not windy when it is just heated, and it needs to be preheated at a certain temperature before blowing hot air, which is about the cold air of the air conditioner. 2. Take a closer look at the remote control or button of the air conditioner to see if it is pressed for heating, whether it will be pressed wrongly, and if it is wrong, you can adjust it by pressing the wrong button.

3. If the temperature is not high or the air is still cold after 15 minutes of using the air conditioner, it may be that the refrigerant inside the air conditioner is leaking, and you need to find a professional to fluoride the air conditioner. 4. Generally, the air conditioner will carry out a defrosting process during the heating process, and the internal and external machines of the air conditioner will automatically stop working during the defrosting process, and the heating function will be automatically turned on again after the defrosting is over. 5. If none of the above reasons are true, it may be that the CT coil is open or the load is not detected, the compressor is not allowed to run or the CT current mutual sensing circuit of the computer board of the outdoor unit is broken, and the motherboard and EEPRO of the external unit need to be replaced.

Hello dear, happy to answer for you. The feeling of cold air in the heating of the air conditioner may be because the hot air that has just been turned on is not stable, causing it to blow cold air, which is also a normal condition, usually waiting for ten minutes to gradually blow warm air. Or due to long-term use, the refrigerant inside the air conditioner is partially leaked, resulting in insufficient refrigerant in the air conditioner.

At this time, the wind blowing out is occasionally not hot, and occasionally it is cold, so be sure to add freon to the air conditioner. After the air conditioner has been used for a long time, too much dust of the filter will interfere with the air volume of the air conditioner, because the heating of the air conditioner is not good, the wind blowing out is not too much temperature, and the dust on the filter should be quickly cleaned up. What to do if the air conditioner heats and blows cold air:

The first step of heating when the cold air can wait for ten minutes to 30 minutes, because most of the ** air conditioners in the heating, the wind blowing out at the beginning will indeed make people feel cold, at this time the temperature is low, the wind will naturally feel cold, but after the heating is completed, the wind will become hot. If the cold air is still blowing after half an hour, be sure to check whether the use of the air conditioner is appropriate, then you must see if there is any problem with the settings on the remote control, such as whether the heating mode is turned on, and whether the set temperature is more appropriate, do not set it too high, and keep a gap of 4-10 degrees from the outdoor temperature.