Midea Air Conditioner KF35G DY JN E3 Why is it not cooled

There are many reasons why the air conditioner is not refrigerated: (1) fluorine leakage at the connecting pipe joint; (2) There is a leakage point in the connecting pipe; (3) The wiring is incorrect; (4), fuse burning; (5) The compressor fails; (6) The external environment temperature is high, and the indoor personnel are more than the United States' air conditioners working at full load. (7) If the power supply voltage is too low, it is not easy to start the Midea air conditioner, and it will stop or the fuse will blow after starting, so it is recommended that the user install a power regulator.

8) The air outlet of the air outlet is not large if the temperature does not drop in the strong cold block room, which is the air filter has too much dust, clean the filter. (9) Improper adjustment of the thermostat. (10) Midea air conditioning installation location is not good, it will lead to uneven indoor temperature or poor refrigeration effect, if the above can not be determined, please call Midea's after-sales service **4008899315 let it deal with it!

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!

Your house must be much larger than your office, mainly to see if the temperature of the air outlet can be lowered, in good cases it can be reduced to about 6 degrees, if the temperature can be lowered, it will be related to your space, angle, and tightness.

It's hard to say. The effect of the large machine is not good. Let's see if it's leaking. Or the voltage is low.

The air outlet of the air conditioner should not be adjusted well, and the air volume is not the maximum.

The four-way valve is broken, and it can only be cooled and not heated.

The air conditioner can only be cooled and not heated, first check whether the four-way valve is powered in the heating state, if it is not powered, it is necessary to check whether the control panel of the indoor unit has the power output of the four-way valve, if not, replace the main control board, and check the connection line of the internal and external units.

When the four-way valve has electricity but does not move, it is necessary to check the four-way valve coil first, if the coil is not abnormal, you can use the screwdriver to knock on the body of the four-way valve, then some of the four-way valve spool slightly stuck problems can be solved. If there is no response to the knock, the only way to do this is to replace it with a new four-way valve. When replacing the four-way valve, it is necessary to pay attention to the cooling measures of the four-way valve body when welding, otherwise the plastic parts in the four-way valve body are easy to deform and cause the new four-way valve to be damaged again.

The principle of air conditioning refrigeration is the reverse Carnot principle, the compressor compresses the refrigerant, so that the refrigerant forms a gaseous state of high temperature and high pressure, after dissipating heat through the outdoor unit, the refrigerant becomes a liquid state of medium temperature and high pressure, and then enters the indoor unit through capillary depressurization, and the refrigerant after depressurization is absorbed and evaporated into a low-temperature gaseous state in the indoor unit, so as to refrigerate. When the air conditioner is heating, a four-way reversing valve is used to change the flow direction of the refrigerant, and the gaseous refrigerant with high temperature and high pressure compressed from the compressor is directly sent to the indoor unit, so that the refrigeration is recorded in the indoor unit to dissipate heat, so as to heat up the room.

From the above principle, it can be seen that the difference between refrigeration and heating is only whether the four-way valve works, so when the refrigeration is normal, the four-way valve should be checked.

If the temperature set by the air conditioner is lower than the actual temperature of the room, the external unit will not start when the air conditioner turns on the heating function.

It seems that the internal and external machine line connection is faulty, you check it.

Check the temperature head of the indoor tube and try it again.

Is it that the four-way valve is not working.

It should be that the comparison amp is broken!

I can only change the entire board!

Your air conditioning cooling capacity is 2600w, is a large horse air conditioner, suitable for a room of about 13 square meters, if your room sealing and insulation conditions are good, there is no problem, if the sealing and insulation conditions are not good, you should buy a refrigeration capacity of 3200w horse air conditioner, so that the effect will be better.

The energy efficiency ratio of the air conditioner is level 1, which is more energy-saving, but the ** of 2,000 yuan is too high, and you can buy an inverter air conditioner.

1. The cooling capacity of the machine is 2600 watts, and the cooling capacity of the standard 1 HP machine is 2500 watts, so the machine is a large 1 HP machine is good, single cooling, without heating function.

2. This refrigeration capacity is suitable for an area of about 13 square meters, and it can also be used for a room of 15 square meters, which is too small, but it will not affect the effect too much.

3. The energy efficiency ratio is level 1, the energy saving level is relatively highest, the maximum power consumption does not exceed the degree hours, and the ** of the level 1 machine is much more expensive than the level 2-5.

4. W is the meaning of outdoor unit.

- Midea's air conditioner is out of order**? With my 7 years of experience in repairing air conditioners, I will tell you how to solve these faults, which should save you a lot of detours.

First: When the air conditioner fails, you can go to the [air conditioner failure** network] to inquire, down to the brand and model of the air conditioner. Universal remote control** query can go to the universal remote control area for inquiry.

When encountering a failure of the air conditioner, we must strictly follow the scientific procedures, and do not act blindly and disassemble at will when the situation is unclear, the fault is unclear, and there are countless in the heart. The consequence of this often amplifies existing faults, increases operating costs, shortens the normal service life of equipment, and leads to early scrapping of equipment.

The air conditioner is not refrigerated or does not refrigerate.

This problem is most common, and the lack of fluorine in air conditioners is the key.

When the machine is turned on, first touch the trachea and judge it by the temperature.

If it is cold, the speed of the fan may be low.

The inner tube scales and dust are cleaned or replaced.

If the inner tube is not considered cool, the thick tube may be flattened.

The return air temperature is not cool, and then touch the intake air to judge.

The air intake is cold and frosty, and fluoride is added to try again.

If the frost slowly disperses, it is a good decision to lack fluoride.

It is not difficult to see the aging of the press, and the lack of exhaust is the key.

Four-way gas is also commonly judged by fluoride collection.

High-pressure scales must be seen to be dirty, and they will be slow to refrigerate.

If you still don't understand, it is recommended that you go to the [Air Conditioning Fault **Net] basic knowledge area and take a look at the maintenance cases to get started.

I hope you get better and better, and the new year will be smooth, all your wishes will come true, you will be healthy, and your family will be happy.

- Finally, I wish the work to go well, fix the air conditioner as soon as possible, and live a happy ———

- If you think it's good, please adopt the answer, give a good review, and wish you a better life———

As with all Midea household air conditioner failures**.

E3 refrigeration overload protection, i.e. the evaporator of the internal machine is frozen.

Reasons: 1. The possibility of mice biting off the sensor wire is more than 60%, especially in public places such as restaurants.

2. The filter screen of the internal machine is dirty and blocked, and the possibility is more than half.

3. The reduction of the capacity of the internal fan leads to the low speed of the internal fan.

4. The back of the evaporator of the internal machine is too dirty, resulting in the evaporator not being ventilated.

5. The sensor resistance value drifts.

Workaround:1The on-hook E3** is a problem with the feedback line of the PG motor.

2.Remove the outer cover of the inner fan and check it, the wires of the internal fan should be broken or not broken.

3.If it is broken at the root of the internal fan, then the only way to replace the internal fan is to replace it.

There are two general reasons for e3:

First, because mice (generally rats or bats) bite the wire, the signal line of the indoor and outdoor units is broken, and second, because the fan motor of the indoor unit of the air conditioner stalls, it is OK to change the motor.

Temperature changes outside the machine, complete porphyrin goes so much time and expense.

The outdoor pipe temperature is abnormal, maintenance method, check the thinnest shield wire of the internal and external machine connection wire, there should be a resistance value of 10k, only 7-9k in summer, the biggest possibility is that the mouse bites off the line, and the temperature of the Midea external machine tube is relatively rare.

E7 Outdoor unit temperature sensor is faulty.

Solutions and Causes:

1. Check whether the wiring of the humidifier and humidity sensor is normal; If there is a problem, it will be replaced or adjusted.

2. Check whether the detection value of the humidity sensor is normal, if there is a problem, it will be judged that the humidity sensor is faulty and needs to be adjusted.

3. Power on the humidifier directly, check whether the humidifier can be humidified normally, if it cannot work normally, it will be judged as a humidifier failure, and it needs to be adjusted accordingly.

4. If the humidity sensor and humidifier fault are eliminated, it can be judged as a motherboard fault and needs to be replaced.

I'm here too, and the air conditioner said that the voltage was too low. He said it would be nice to add a voltage regulator.