The air conditioner does not refrigerate in summer, does not heat in winter, and what happens when t

This situation should not be that the business deliberately changed your heating and cooling air conditioner to a single mode air conditioner, since it can be cooled and heated without changing things, but the situation is single, according to my opinion, some conditions should be the fault of the four-way raft. If you don't commute, it's simply stuck. When heating, it is easy to get stuck in the direction of heating, do not change direction when used in summer, can only heat but not cool, or can only refrigerate but not heat.

Every time he comes to see how many tools can be seen what the fault is, if the four-way raft is replaced, it is just a simple use of electromagnetic electricity, let it be converted or other methods, but if it is the root cause of the raft, it is a symptom but not the root cause, it is a little troublesome to change it, first of all, the tool is not complete, it is best to communicate with customer service, do a fundamental treatment, if the raft is broken, let them replace the new one, because now some customer service is not very responsible, during the insurance holiday, can not change is not changed, so that you can use it, Until the end of the warranty period, it is very hurtful. If it's really troublesome, find an experienced master to see, but you have to spend some rice and remember, heh! The above is a personal opinion, I hope it can be helpful to you!

It's not that the merchant sells your cold machine with a single cold machine, but that the after-sales maintenance personnel are not as skilled as others, and they will only connect or remove the threads in your external machine.

Haha It's actually quite simple.

When it was time to refrigerate, they unplugged the four-way valve power supply line of the external unit, and connected it again when it was about to heat up in winter.

First of all, explain the reason for the hot air in the refrigeration mode, in the air conditioner, the condenser (the fins in the outdoor unit) dissipates the heat into the air, so that the indoor temperature is reduced, and if the indoor evaporator is regarded as a condenser, the outdoor heat can also be brought indoors, which can be heated, if the temperature does not meet the requirements, you can also connect a resistance wire, heat heating, and at the same time, the key component mentioned earlier to realize the heat flow direction of the external and internal machine is the four-way valve, Also called the reversing four-way valve can change the flow direction of the refrigerant, so that it can be cooled or heated, your situation, may be the reversing four-way valve is faulty, or the electronic components that control the four-way valve have problems, to solve this problem need a professional master to detect before prescribing the right medicine.

I hope you can find a professional master to figure out the problem and then deal with it.

Two reasons: First, the circuit board is faulty, and the circuit board is replaced. The four-way valve refrigeration mode is non-electrified.

1.In the current refrigeration mode, the four-way valve line is electrified, causing the four-way valve to be engaged, so the heat is generated. Unplug the four-way valve line, the four-way valve is restored, and the refrigeration is refrigerated.

2.When the heating mode is turned on in winter, because he pulls out the four-way valve wire in summer, the four-way valve cannot be energized and engaged, so it cannot be heated. Plug in the four-way valve line, the four-way valve is engaged, and the heating is made.

2. The signal line is connected incorrectly during installation. Swap the four-way valve line with the fan line. (This is rare, and installers generally don't make this kind of low-level mistake.) ）

1. Low outdoor temperature.

It is also possible that the air conditioner does not heat because of the environment, and even if the air conditioner is completely free of any faults, it may lose its ability to be free when the outdoor temperature is particularly low. Because the heating function of the air conditioner is completely different from that of the electric heater, it uses the compressor to transport the heat, that is, to transport the heat from the outside to the interior to play the function of heating.

If the outside temperature is particularly low, it will be more difficult to transport, or even completely ineffective. There is no good solution to this problem, and the only way to do this is to replace the air conditioner with better performance.

2. Four-way valve failure.

There is a very important accessory in the outdoor unit of the air conditioner called the four-way valve, which can automatically change the direction, so as to ensure that the heating function of the air conditioner can operate normally. If the four-way valve is blocked or deformed, it will also cause the air conditioner to not heat. If it is just a simple blockage, it can be solved by unblocking the four-way valve.

And if this fitting has been completely damaged, it needs to be replaced with a new four-way valve. Absolutely amazing.

The air conditioner does not heat, which may be caused by dust on the filter screen of the air conditioner, and the dust accumulated on the filter screen will cause the heat in the air conditioner to not come out.

The air conditioner is the same as the refrigerator, and the brother needs enough fluorine during operation, and if there is a lack of fluorine, then it will also cause the air conditioner to not heat.

If the function of the heater of the air conditioner is damaged, you can find a professional maintenance personnel to repair it.

In heating mode, the air conditioner starts just like you need to warm up before swimming, and you can get into the state better after a period of warm-up. Because the air conditioner calls the hall width, the cold air protection function will be turned on when the heating mode is opened.

When the compressor starts to operate, the low-pressure steam of the refrigerant in the refrigeration system is sucked in by the compressor and compressed into high-pressure steam and then discharged to the condenser.

Usually after 10-15 minutes, a warm and bright wind will blow. During the heating process of the air conditioner, the internal unit will also stop supplying air, because the air conditioner is defrosting, so there is no need to worry.

Winter is coming, and many household appliances will have some conditions in cold weather, but many of them are false faults and do not need to be repaired. In winter, many household appliances should also be protected from freezing, and the freezing of water-wading household appliances is not covered by insurance.

Precautions when heating:

1. Maintain a certain humidity.

When heating, the indoor air will become dry, and a dry air conditioner will make the human body feel uncomfortable and cause diseases, so you can put a basin of water in the room when heating, and if there is a humidifier, you can turn on the humidifier.

2. Keep the room clean.

It is best to breed plants that can clean the air indoors, such as spider plants, tiger tail plants, etc., which can not only clean and moisten the air, but also keep the indoor air fresh;

3. Clean the filter frequently.

When heating in winter, the air conditioner will turn on the electric auxiliary heating, and the dust accumulated inside the air conditioner will be roasted and emit peculiar smells under the heating of the electric auxiliary heating pipe, and the filter will be too dirty to cause the heat to be dissipated, resulting in air conditioning failure and fire.

If you set the first temperature of the air conditioner to be too low, the indoor temperature will drop to the lowest temperature that the air conditioner can provide, resulting in a lack of warmth in the room. It is recommended to set the temperature within a suitable range, generally between 18 and 26.

If the outside temperature is too low, the heating efficiency of the air conditioner will drop or even fail to work properly.

Under normal circumstances, it takes a certain amount of time for the air conditioner to rise to the preset temperature after it is turned on for heating in winter.

1. Low outdoor temperature: the air conditioner cannot work normally in an environment where the temperature is too low, under normal circumstances, the inverter air conditioner we buy on the market may not heat at minus 15 degrees Celsius, because the defrosting function of the air conditioner in a low temperature environment can not operate normally.

2. Four-way valve failure: Four-way valve is a control valve with four oil ports, which plays a vital role in refrigeration equipment. When air conditioning is needed for heating in the cold winter season, the four-way valve may rupture or deform due to frequent reversal (two changes every 40-60 minutes), resulting in excessive high and low pressure difference between the two sides.

In addition, there may be problems such as abnormal power on and off of the coil in the valve, installation problems of the four-way valve, failure to open the globe valve, and gas cross-air of the four-way valve. Staring for change.

3. Filter dust: Excessive dust accumulation in the filter will block air circulation. If you do not clean up the dust in the filter in time, the dust will block the air outlet, which will reduce the air volume of the air outlet, and the hot air will not come out, then the air conditioner will not heat or the heating effect is not good.

4. Lack of fluorine: In the process of repairing the air conditioner, it will be found that the maintenance personnel will connect the pressure gauge (electronic leak detector) to the air conditioner, which is to judge whether the air conditioning pipeline is leaking by testing the pressure of the air conditioning heating system. If you find that the pressure is significantly lower than normal, it means that the air conditioner is not heating due to a freon leak.

5. Check valve problem: check valve is used to switch the flow direction of refrigerant in air conditioning, and in the heating cycle, the check valve obtains heat from the outside world by increasing the resistance of the throttling element (capillary) to achieve the heating effect. A leaking check valve will cause the air conditioner to not heat up.

First of all, it is necessary to know whether the air conditioner is a single cooling type or a dual temperature air conditioner.

Whether the settings of the air conditioner are adjusted incorrectly. It should be set to adjust to the heating mode.

If the setting and adjustment are correct, but the air conditioner does not heat, it should be the abnormal performance of the air conditioner control electric early jujube road, or there are other jujube faults, and the after-sales service of the Luyan dismantling system or ask professionals to overhaul it.

1. The ambient temperature is low, and it is in the preheating period of the air conditioner, so it takes a period of time to preheat it.

Solution: Work for a period of time, warm up for a period of time to work normally.

2. Insufficient refrigerant means lack of fluorine and poor heating effect.

Solution: Leak detection of air conditioning system pipelines, and fill leakage points. At the same time, check whether there is any abnormal condition of the temperature sensor of the indoor coil unit, and supplement fluorine.

3. There is too much dust and the heating effect is poor.

Solution: Remove dust and clean pipes.

1. Lack of fluorine: At present, most people use heat pump type or heat pump plus auxiliary electric heating type air conditioner. The working principle of these two air conditioners is that when the freon evaporates, it absorbs heat from the outside air, and when the outdoor temperature is low, the temperature difference with the evaporation temperature of the freon is small, and the heat exchange effect becomes worse and the hot air is less.

2. Too much dust accumulation in the air conditioner: too much dust in the air filter, and the internal and external vents are blocked by foreign objects. The function of the filter is to absorb the dust in the air swimming, if the dust is too much and not cleaned in time, the air flow will be blocked, resulting in the reduction of the air outlet volume, resulting in the heat production in the machine can not be brought out by the flowing air in time, resulting in insufficient heating capacity.

3. Failure of auxiliary electric heating function: If the electric auxiliary heating control circuit or electric auxiliary heating equipment fails and cannot work normally, when the ambient temperature is relatively low, it will lead to insufficient heating of the air conditioner, and even the air conditioner will not heat at all when the environment is bad.

4. The outdoor temperature is too low: when the room temperature is lower than zero, the outdoor unit of the air conditioner will be frosty. At this time, when the user turns on the air conditioner to heat, it takes about 8-12 minutes to "defrost", and the room temperature may be reduced.

The lower the outdoor temperature, the worse the heating effect of the air conditioner, that is, the actual heating is not enough.

5. The applicable area of air conditioning heating is smaller than the area of the room where air conditioning is used, resulting in the room temperature not rising ideally, that is, the customized heat is not enough.

1. The defrosting controller of the air conditioner fails.

When the air conditioner defrosting controller can not work normally, the air conditioner can not enter the defrosting state, then the evaporator of the air conditioner will frost, and the air conditioner can not defrost the frost will make the frost thicker and thicker, affecting the efficiency of the air conditioner's heat exchange rate, resulting in insufficient heating of the air conditioner.

In this case, the user first checks whether the defrosting temperature sensor is misaligned, the contact is poorly contacted, or the air duct is blocked, and then these faults are carefully solved one by one.

2. The voltage is too low or unstable.

Check that the power supply voltage in the room is normal. When the power supply voltage is too low or unstable, the compressor will not work properly after the air conditioner is started, and the heating of the air conditioner will also be affected. When this problem occurs, it is recommended that users should avoid the peak period of electricity consumption, or they can buy a voltage regulator to stabilize the voltage, only a stable voltage can make the air conditioner work normally.