When the communication failure of Gree inverter air conditioner, how to determine whether the intern

E6 communication failure, after the internal machine is energized, detect the 0-36V voltage fluctuation of the external signal line, which proves that the external machine board is broken, and on the contrary, there is a communication failure, and check whether the internal and external machine connection lines are faulty.

Fixed-frequency air conditioner: Simply put, it is a fixed speed, the power of the fixed-speed compressor must remain unchanged, and the fixed-frequency air conditioner is an ordinary air conditioner that works with a voltage of 220 volts and a frequency of 50 Hz.

Inverter air conditioner: Inverter is variable speed, and the inverter will be instructed by the computer according to the change of room temperature, so that the speed of the compressor can be reduced or increased, so as to save electricity. Inverter air conditioner means that the frequency of the working power supply of the compressor is variable, so the speed of the compressor is also variable.

The characteristics of fixed-frequency air conditioner: the working power supply voltage and frequency are fixed. Principle of temperature regulation:

The speed of the compressor is basically unchanged, relying on its continuous "opening and stopping" of the compressor to adjust the room temperature; The disadvantage is that it is easy to cause the room temperature to be cold and hot between opening and stopping, and consumes more electric energy.

The characteristics of inverter air conditioner: relying on the change of compressor speed instead of shutdown to achieve room temperature control, so the room temperature fluctuation is small and the power consumption is less; Its comfort is greatly improved; The adaptability of air conditioners to the power grid has been enhanced.

- Is the air conditioner malfunctioning? With my 8 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 [empty. Move. Old.

Obstruct. Generation. Yard. Net] inquiry, down to the air conditioner products.

brand and model. Universal remote control** query.

You can go to the universal remote control area to inquire.

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.

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 you all the best in your work, fix the air conditioner as soon as possible, and live happily ———

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

Judge the inverter air conditioner.

The method of internal and external machine failure is as follows:

1. Clearly determine the type of failure: the type of fault of the internal machine is different from that of the external machine, and distinguishing the type of fault can help determine the components that have failed. However, there are some faults that cannot be distinguished, such as refrigerants.

leaks, communication failures.

2. Inquire about the detailed brand and model of the air conditioner: You can query the fault code of the machine on the network to find out the detailed information of the air conditioner.

3. Query the general remote control code to determine the specific fault.

Note: When determining the type of fault, strictly follow the review steps, otherwise there is a possibility of destroying the machine.

It is necessary to make a comprehensive judgment according to the type of fault that occurs in combination with other fault phenomena.

Generally speaking, most of the problems with the main control panel of household split wall-mounted or cabinet air conditioner are the main control panel of the indoor unit.

This is not necessarily the case with other types of split system air conditioners.

You can also find the electrical wiring diagram given by the product manufacturer in the installation and use manual for a closer look.

1. Disassemble the cover plate of the air conditioner first, and then use a screwdriver.

Disassemble the cover plate on the air conditioner, power on the air conditioner, and check whether the fan of the air conditioner is running during operation. 2. Check whether the compressor of the external machine is running. 3. If there is no wind after the air conditioner is turned on, it is generally damaged by the internal unit, and if there is wind after the air conditioner is turned on, but it is not refrigerated, it is generally damaged by the external unit.

First of all, we can disassemble the shell of the air conditioner by ourselves, and check whether the surface of the internal air conditioning filter is covered by dust, if there is dust covering, it will lead to cold or hot air inside the air conditioner.

There is no way to dissipate it into the room in time to reduce the cooling and heating effect of the air conditioner, we can prepare brushes, detergent and water, clean the filter and install it back. 2. Check whether there is dust coverage on the surface of the air conditioner, if there is dust coverage on the surface of the air conditioner, it will affect the heat dissipation of the air conditioner, resulting in a rise in temperature, and then the air conditioner will start overheating protection, and the problem is often manifested as automatic tripping or automatic shutdown. 3. Disassemble the upper cover of the air conditioner and check the condenser pipe.

We need to use brushes and watering cans to clean the oil and dust on the surface of the condenser pipe with special detergents.

This kind of judgment generally requires a certain amount of experience in air conditioning maintenance, usually can only use the following methods to make a preliminary brief judgment, when there is a problem, it is best to let professional maintenance personnel to carry out maintenance, the steps of the preliminary judgment are as follows: 1. First of all, the power plug of the air conditioner is removed from the socket, and the insulation protection work is done. 2. After the safety measures are taken, connect a 220V wire to the two LN ports of the outdoor unit.

3. Then power on the outdoor unit, pay attention to observe whether the compressor of the outdoor machine and the fan of the outdoor unit can work normally, if it can, it means that the motherboard of the outdoor unit is not broken, otherwise, it means that the motherboard of the outdoor unit may have been damaged. The above methods can only make the most basic judgment on the quality of the room destroyer's external machine, but the specific is that it is broken, there is a problem on the motherboard, whether it needs to be repaired or it needs to be replaced with a new motherboard or spare parts, we need to call a professional maintenance master to test, we had better not disassemble it ourselves, so as not to cause safety accidents or secondary damage to the air conditioner. Under normal circumstances, when there are some failures in large electrical products at home, in addition to the reasons caused by human control, it is best to ask a professional to deal with it in other cases, after all, personal safety is the most important.

Taking Gree inverter air conditioner as an example, the method of judging whether the outer panel of the air conditioner is damaged is as follows:

1. First of all, remove the plug of the inverter air conditioner and make insulation protection.

2. Then send a 220V wire to the two ports of the LN of the external unit, that is, connect to the outdoor unit.

3. Then according to whether the compressor and outdoor fan are working normally, it can be determined, if the compressor or outdoor fan cannot work normally, it means that the outer plate of the air conditioner is faulty.

If the outer plate of the inverter air conditioner is damaged, in this case, it is best not to disassemble it by yourself, in case of potential safety hazards, you can ask the after-sales maintenance personnel of the air conditioner to come to the door for inspection and maintenance.

When using the air conditioner, if you find that the air conditioner does not rotate, it may be because the power supply is off. The power supply circuit needs to be checked. The indoor unit and the outdoor unit are connected by the AC contactor, and the power supply is also transmitted through this channel, so when the AC contactor is damaged, it means that the outdoor unit and the compressor cannot receive the power supply, and the outdoor unit will not be able to work normally.

This answer applies to most of Gree's air conditioner models.

The method of judging the failure of the internal and external units of the inverter air conditioner is as follows:

1. Clarify the fault type, the fault type of hundreds of units is different from that of external units, and distinguishing the fault type is helpful to determine the fault components. But there are also some faults that cannot be distinguished, such as refrigerant leakage, communication failure, etc.

2. Check the detailed brand and model of the air conditioner, and you can view the details of the air conditioner through the machine fault code on the network.

3. Query the general remote control** to determine the specific fault.

Note: When determining the type of fault, strictly follow the inspection steps, otherwise the machine may be damaged.

Step 1: Before knowing whether it is an internal unit failure or an external unit failure, clearly determine the type of fault, (some faults cannot distinguish between internal and external units at all, such as refrigerant leakage, including the entire system of indoor and outdoor units; For example, a communication failure means that the internal and external units cannot communicate, etc.).

Step 2: According to the air conditioner fault code network query, detailed to the air conditioner brand and model.

Step 3: Query the general remote control code to determine the specific fault.

Once the air conditioner fails, we must strictly follow the scientific procedures, in the case of unclear circumstances, unknown failures, and many hearts, we must avoid blind action and random disassembly, so as to expand the existing fault, improve the operating cost, shorten the normal service life of the equipment, and scrap the equipment in advance.

Gree air conditioner inverter air conditioner hangs up on the display E6, he is normal first, there are 2 bells, and then the E6 is not refrigerated.

I want to ask, I am Changhong inverter air conditioner, I changed the motherboard once and used it for a year The motherboard was broken again, and today I changed the motherboard, after changing it, I turned on it for two minutes with the remote control and shut it down, cycled three times, and replaced someone to pick up and say that the motherboard of the external machine was broken, is this possible? Is it caused by the previous person being unprofessional, testing the machine or not installing the inner motherboard?

You have to see if the high-voltage module of the motherboard has 367VCheck the peripheral circuit first, and don't change the board easily.