The inverter air conditioner can sometimes be turned on, and sometimes E3 appears after turning it o

With the higher and higher living standards of people, basically every household will use air conditioners. The most worrying thing in the process of using it should be that the air conditioner is out of order. Generally speaking, if the air conditioner fails, a series of ** will be displayed, so what is the fault of the air conditioner E3, the following will be explained for you.

What is the fault of the air conditioner E3.

E3 means: Compressor Low Pressure Protection.

1. Determine whether the ambient temperature is too low.

2. To determine whether it is a control fault or a system failure, you can first short connect the LPP plug on the main control board and the neutral line N on the motherboard, if the indoor unit is running normally, you can determine that the main board or display board of the indoor unit is fine, and the fault appears on the indoor and outdoor unit connection wires, plug joints or low-voltage switches of the outdoor unit.

3. Connect the cable and plug of the external machine, adjust the multimeter to the ohmic block, connect one meter pen to the LPP protection wire unplugged on the motherboard, and connect the other meter pen to the zero line N, if the resistance value is 0, it means that the fault is on the low-voltage switch, otherwise it is a line problem.

4. Use the pressure gauge to determine whether the system is leaking fluorine or blocked.

5. The appearance of "dusty" is mainly to remind users to clean the filter. Many people do not pay attention to cleaning the filter, and even do not know the consequences of not cleaning the filter for a long time: first of all, it may affect the operation and refrigeration effect of the air conditioner, resulting in a decrease in air volume, poor refrigeration effect, and then affect the service life of the air conditioner, and secondly, the air inhaled by the air conditioner when working contains a certain amount of dust, mites, viruses and other harmful substances, some of them adhere to the filter screen, and if the filter is not cleaned for a long time, such bacteria and fungi will breed inside the air conditioner, resulting in mildew, and even peculiar smell. It pollutes the indoor air-conditioning environment and affects the health of the family.

Now after reading the above introduction, you will definitely have a certain understanding and understanding of air conditioning**e3. There are several cases of air conditioning**E3. There are some simple failures that we can handle ourselves.

E3 is pressure protection.

1.Focus on checking whether the refrigerant is missing and whether the pressure switch is damaged.

2.It may also be that the radiators and filters of the internal and external units are too dirty.

3.It is also possible that the circuit board related circuits will be damaged.

Workaround:

1.Add refrigerant.

2.Wash the filter.

3.Replace the circuit board.

You open the manual to see if there is a corresponding explanation for this fault code.

It should be that the speed of the indoor unit fan is out of control.

Specifically, there are three scenarios:

1. The indoor fan does not rotate, very slow, or very fast. DAO2, the fan motor has no feedback signal output, and the motor needs to be replaced.

3. The indoor computer board fan detection circuit is faulty, and the computer board needs to be replaced.

Troubleshoot E3 Method:

1. Check whether the wind turbine assembly is loose or stuck; Adjustments will be made if any.

2. Check whether the wiring of the indoor electronically controlled fan is reliable; If there is a problem, it will be adjusted.

Summary. The air conditioner will be turned on for a while to show what is the reason for E3: 1. The set temperature and indoor and outdoor ambient temperature are too low, and the air volume is too low, and the air conditioner is normally protected (the temperature will be lifted after the temperature rises); 2. Lack of fluorine, check whether the thin pipe of the air conditioner and the indoor heat exchanger are frosted, if there is frost, it is because of the lack of fluorine, and it is necessary to find after-sales leakage detection and fluoride; 3. The filter screen or indoor heat exchanger is dirty, resulting in low air volume, and the system cannot exchange heat in time, resulting in low temperature of the indoor coil, just clean the filter screen or indoor heat exchanger; 4. The failure of the fan and related circuits causes the air volume to be low, and the system cannot exchange heat in time, resulting in the temperature of the indoor coil being too low, so find after-sales maintenance.

I'm sorry I don't understand, but can you elaborate on that?

The air conditioner will be turned on for a while to show what is the reason for E3: dry 1, the set temperature and indoor and outdoor ambient temperature are too low, and the air volume is too low, and the air conditioner is normally protected (the temperature will be lifted after the temperature rises); 2. Lack of fluorine, check whether the thin pipe of the air conditioner and the indoor heat exchanger are frosted, if there is frost, it is because of the lack of fluorine, and it is necessary to find after-sales leakage detection and fluoride; 3. The filter screen or indoor heat exchanger is dirty and blocked, resulting in low air volume, and the temperature of the indoor coil is too low due to the timely heat exchange method of the system without cracking, so it is good to clear the filter screen or indoor heat exchanger; 4. The failure of the fan and related circuits causes the air volume to be low, and the system cannot exchange heat in time, resulting in the temperature of the indoor coil being too low, so find after-sales maintenance.

1. If the set temperature and indoor and outdoor ambient temperature are too low, and the air volume is too low, the air conditioner will be protected normally (the temperature will be lifted after the temperature rises); 2. Lack of fluorine, check whether the thin pipe of the air conditioner and the indoor heat exchanger are frosted, if there is frost, it is because of the lack of fluorine, and it is necessary to find after-sales leakage detection and fluoride; 3. The filter screen or indoor heat exchanger is dirty and blocked, resulting in low air volume, and the temperature of the indoor coil is too low due to the timely heat exchange of the system without the Huai staring method, so it is good to clear the filter screen or indoor heat exchanger; 4. The failure of the fan and related circuits causes the air volume to be low, and the system cannot lead the sail and heat exchange in time, resulting in the temperature of the indoor coil being too low, and the after-sales maintenance is found.

1. If the E3 logo appears on the LCD screen of the air conditioner, it means that there is low-voltage protection, and at this time, the air brigade has turned on the protection measures against freezing. We need to check the air conditioner, and there are many reasons for this. 2. For example, if the current temperature is set too low, generally speaking, if the setting is lower than 22 degrees, and the air volume is relatively small, some brands of air conditioners will be protected by positive wax beams.

3. It may also be a manifestation of the lack of fluoride in the air conditioner, you can take a look at the air outlet of the air conditioner and its thin pipe, including whether the indoor exchanger has frost and ice problems. If it appears, it means that there is a lack of fluoride, and it is necessary to add freon in time. 4. It is also possible that the filter screen of the air conditioner is too dirty, and the dust is blocked, which will lead to low air volume, and there will also be a fault at this time, and the filter screen needs to be cleaned.

5. If you can't find a specific reason, you can also find after-sales service personnel to come to check and repair.

Summary. An E3 error is an abnormality in the pressure at high pressure. This is mainly due to the abnormally high pressure of the outdoor unit.

Remedies for this differ when cooling and heating are used. If you get an E3 error** when using the air conditioner, first check the heat exchanger of the outdoor unit. It is a heat exchanger that is often located on the back of the outdoor unit, but if dust accumulates here, the heat does not cool down well and the internal temperature rises, resulting in abnormal pressure.

An E3 error is an abnormality in the pressure at high pressure. This is mainly due to the abnormally high pressure of the outdoor unit. Remedies for this differ when cooling and heating are used.

If you get an E3 error** when using the empty collapse adjustment finger, first check the heat exchanger of the outdoor unit. It is a heat exchanger that is often located on the back of the outdoor unit, but if dust accumulates here, the heat cannot be cooled properly, and the internal temperature rises, resulting in abnormal pressure.

I'm still a little confused, can you be more detailed?

An E3 error is an abnormality in the pressure at high pressure. This is mainly due to the abnormally high pressure of the outdoor unit. Remedies for this differ when cooling and heating are used.

If you get an E3 error** when using the empty collapse adjustment finger, first check the heat exchanger of the outdoor unit. It is a heat exchanger that is often located on the back of the outdoor unit, but if dust accumulates here, the heat cannot be cooled properly, and the internal temperature rises, resulting in abnormal pressure.

Summary. The air conditioner will be turned on for a while to show what is the reason for E3: 1. The set temperature and indoor and outdoor ambient temperature are too low, and the air volume is too low, and the air conditioner is normally protected (the temperature will be lifted after the temperature rises); 2. Lack of fluorine, check whether the thin pipe of the air conditioner and the indoor heat exchanger are frosted, if there is frost, it is because of the lack of fluorine, and it is necessary to find after-sales leakage detection and fluoride; 3. The filter screen or indoor heat exchanger is dirty, resulting in low air volume, and the system cannot exchange heat in time, resulting in low temperature of the indoor coil, just clean the filter screen or indoor heat exchanger; 4. The failure of the fan and related circuits causes the air volume to be low, and the system cannot exchange heat in time, resulting in the temperature of the indoor coil being too low, so find after-sales maintenance.

The air conditioner will be turned on for a while to show what is the reason for E3: dry 1, the set temperature and indoor and outdoor ambient temperature are too low, and the air volume is too low, and the air conditioner is normally protected (the temperature will be lifted after the temperature rises); 2. Lack of fluorine, check whether the thin pipe of the air conditioner and the indoor heat exchanger are frosted, if there is frost, it is because of the lack of fluorine, and it is necessary to find after-sales leakage detection and fluoride; 3. The filter screen or indoor heat exchanger is dirty and blocked, resulting in low air volume, and the temperature of the indoor coil is too low due to the timely heat exchange method of the system without cracking, so it is good to clear the filter screen or indoor heat exchanger; 4. The failure of the fan and related circuits causes the air volume to be low, and the system cannot exchange heat in time, resulting in the temperature of the indoor coil being too low, so find after-sales maintenance.

I'm sorry I don't understand, but can you elaborate on that?

1. If the set temperature and indoor and outdoor ambient temperature are too low, and the air volume is too low, the air conditioner will be protected normally (the temperature will be lifted after the temperature rises); 2. Lack of fluorine, check whether the thin pipe of the air conditioner and the indoor heat exchanger are frosted, if there is frost, it is because of the lack of fluorine, and it is necessary to find after-sales leakage detection and fluoride; 3. The filter screen or indoor heat exchanger is dirty and blocked, resulting in low air volume, and the temperature of the indoor coil is too low due to the timely heat exchange of the system without the Huai staring method, so it is good to clear the filter screen or indoor heat exchanger; 4. The failure of the fan and related circuits causes the air volume to be low, and the system cannot lead the sail and heat exchange in time, resulting in the temperature of the indoor coil being too low, and the after-sales maintenance is found.

Empty Nian Jian turned on for a while to show e3 What is the original boy Chun Chong because of your good dear, <> one, what does the air conditioner show e3 mean? The failure of the air conditioner** according to the different models of expression of different meanings, generally the United States air conditioner shows E3 failure There are several situations, namely fan speed out of control, sensor failure, pants with high and low voltage protection and so on. 2. The reason why the air conditioner displays e3 Midea air conditioner shows fault for one minute after turning on **e3, which means overvoltage and undervoltage protection, check whether the AC voltage is too high or too low, and overhaul it according to the actual situation; In fact, when we use it in our daily life, not all of them are household air conditioners, and there are **air conditioners, and some cabinet models will still fail**E3 means that the temperature sensor T3 is abnormal, and it is necessary to check whether the resistance value of the thermistor sensor T3 itself is normal, and whether the sensor connection line is open, open or poorly contacted.