What happens when the air conditioner appears E7 and the outside unit does not rotate?

1.It is very likely that the voltage of the air conditioner connection is not normal. After the voltage is abnormal, it will cause the E7 fault prompt that the external unit does not turn on after the Midea air conditioner is turned on.

2.There is also an E7 fault, because the power connection mode of the internal and external units is inconsistent, and the air conditioner will be displayed after it is turned on. 3.

It may also be caused by the internal wiring of the air conditioner, or abnormal parts. Suggested workaround:1.

First of all, under the operation of professionals, check whether the power connection mode of the internal and external units is consistent. If the connected power supply is inconsistent, or there is no one-to-one correspondence between the signal connection cables, just unplug the wrong cable and plug it in the correct position. Once the connection is successful, this fault will be troubleshooting.

2.If it is caused by the failure of the internal compressor, you should also contact the after-sales service personnel of Midea air conditioner in time. Generally, professional maintenance personnel will be arranged for on-site inspection.

Once the problem has been checked, it can be solved through targeted repairs or original factory replacement. 3.If the voltage of the air conditioner is abnormal, unplug the air conditioner in time.

Contact a professional power maintenance personnel to repair the line before it can be used.

The air conditioner E7 is the air conditioner failure** is the fault of overcurrent or phase sequence protection feedback, if it is not a new machine, it can be concluded that it is overcurrent protection, and its overcurrent protection means that the voltage is low, and the compressor starting capacitor can be replaced. Basically, it can solve the problem, this is a common problem of the old air conditioner, if it is a new air conditioner, check whether the power access mode of the internal and external units is consistent, the fire and zero line must be connected to the corresponding position, and check whether the signal connection of the internal and external units corresponds one by one.

The air conditioner shows that the E7 fault is a module fault, which is manifested as a mode conflict and a circuit plate fault, resulting in the inability to communicate. After the air conditioner shows that the E7 is faulty, you need to check whether the motor can operate normally and whether there is a problem of poor contact with other connected parts; After troubleshooting, check whether the water level sensor, motor and other parts are faulty. If you can't check it yourself, you need to contact the customer service of the air conditioner brand for inquiry.

1. Air conditioner display E6: communication failure, air conditioner display E6 is the signal line of the internal and external unit is broken or leakage, this situation is likely to be due to the problem of the wire connected between the indoor unit of the air conditioner and the outdoor unit, so you should turn off the power of the air conditioner immediately, and then you can contact the after-sales master of the air conditioner to deal with this problem. Don't do it yourself, because accidents are likely to occur.

2. Communication troubleshooting methods: (professionals).

1. Check whether the display board connection line group is broken or damaged, and check whether the plug connector of the display board connection line group is good, if there is a problem, replace or adjust it accordingly;

2. Check whether there are obvious welding quality problems in the welding of the circuit components at the bottom of the electronic control motherboard or display board, and replace them accordingly if there is;

3. Use a cabinet indoor display board that can work normally to replace the original faulty cabinet indoor display board Sun Qiao, if the air conditioner is still faulty, it is judged that the main board of the air conditioner is faulty; If the air conditioner failure disappears, it means that the display board of the air conditioner unit is faulty;

4. Use a cabinet indoor motherboard that can work normally to replace the original faulty cabinet indoor motherboard; If the air conditioner fault disappears, it is judged that there is a fault in the main board of the air conditioner; If the communication between the motherboard and the display board is still faulty in the air conditioner, it can be judged that the air conditioner display board is faulty.

Air conditioning is the most commonly used household appliance in life, the probability of air conditioning appearing in the old state travel skin is also relatively large, if the air conditioner is found to show the fault of E7**, how to solve it? How to use the empty town search to save energy and electricity?

1. What is the fault of air conditioner E7 and how to solve it.

1. If there is an E7 fault in the air conditioner**, generally speaking, it is because the connection signal of the indoor and outdoor units is broken, such as poor contact or leakage of insulation between the two, or it may be connected wrongly, so there will be an E7 failure**.

2. The method of diagnosis is to use a multimeter to detect, connect the meter pen with the wiring, and use a screwdriver to check whether the crimping line is loose, so as to eliminate the problem of poor contact leakage. If there is leakage, you need to replace it with a new cable. Then check whether the connector is damp and reconnect it firmly.

Or replace the terminal strip of the wiring to be able to troubleshoot.

2. How to use air conditioners to save energy and electricity.

1. Whether it is a hot summer or a cold winter, I am reluctant to turn on the air conditioner, because I feel that the electricity consumption after turning on the air conditioner for a day is relatively large, and the electricity consumption is more every month. In fact, we can also master some tips when using air conditioners, which can save energy and electricity.

2. The choice of air conditioner needs to be considered clearly, some air conditioners are first-class energy efficiency, second-level energy efficiency, and some are.

Level 4 and 5 energy efficiency, although the latter ** notebook is poor, after long-term use, you will find that the more electricity is consumed, so it is better to choose a first-class energy efficiency air conditioner at the beginning.

3. Open the windows for ventilation to ensure that the indoor air is fresh, and then close the doors and windows. Turn on the air conditioner, use the strong wind mode first, and set the temperature to about 26 degrees, the human comfort will be relatively high, and it can also bring the effect of energy saving, according to statistics, it can save about 10% of electricity.

4. Turn on the air conditioner in winter, first raise the temperature and then slowly decrease, after turning on the air conditioner, the direction of the warm air outlet will be downward, which can make the air rise, and the temperature in the whole house will increase, bringing the purpose of energy saving and consumption reduction.

Summary: If there is a failure problem during the use of the air conditioner, you can call ** consultation for maintenance, if you are not particularly understanding, you can pay attention to the official website of Qijia, which has more information about the air conditioner.

E7 in the air conditioner is an air conditioner fault** is an overcurrent or phase sequence protection external feedback fault.

If it is not a new machine, it can be judged to be overcurrent protection, and its overcurrent protection means that the voltage is low, and the starting capacitor of the compressor can be replaced, which can basically solve the problem, which is a common problem of old air conditioners.

If it is a new potato liter air conditioner installation, it should be overhauled according to the following treatment methods:

1. Check whether the power connection mode of the internal and external units is consistent, and the fire and neutral lines must be connected to the corresponding position widely. In addition, check whether the signal connection wires of the internal and external units correspond to each other and cannot be misplaced;

2 Check the voltage, if the phase sequence is reversed, you can change the phase sequence of the external power line.

If E6 is displayed, it means that the motor is stalled or the motor does not rotate.

Here's how to fix the air conditioner showing E6:

1. Check whether the display board connection line group is broken or damaged, and check whether the plug connector of the display board connection line group is good, and if there is a problem during the inspection, replace or adjust it accordingly.

2. Check whether there are obvious welding quality problems in the welding of the circuit components at the bottom of the electronic control motherboard or display board, and adjust if there are problems during the inspection.

3. Use a cabinet indoor display board that can work normally to replace the original faulty cabinet indoor display board, if the air conditioner still has a fault, it is judged that the main board of the air conditioner is faulty; If the air conditioner fails to disappear, it means that the display board of the air conditioner is faulty.

1.It is likely that the voltage of the air conditioner connection is abnormal, which will cause the Midea air conditioner.

E7 fault prompt if the external unit does not rotate after booting.

2.Also, this Soyan e7 fault will be displayed after the air conditioner is turned on, because the power connection mode of the internal and external units is inconsistent.

3.In addition to the power supply problem, it may be that the internal wiring of the air conditioner's skin source, or the parts are abnormal and cannot operate normally. When the air conditioner is turned on, it will prompt E7.

Midea's air conditioner explains why the E7 failed. 1.Check the outdoor fan wiring and feedback for disconnection or damage.

If it falls off, it needs to be retrieved and replaced if it is damaged. 2.If the outdoor fan does not turn, the fan motor needs to be replaced.

E1, E2, F2, E7 and other displays: This is a fault**, indicating that the electrical appliance is faulty and the approximate location, and it cannot be properly worked. Since the faults of each appliance are different, you can take a look at the manual first.

There is generally a fault ** table in it to see if there is such a fault and the corresponding fault prompt. If you can't find it, or there is no manual, you can contact the after-sales service. If the warranty period has passed, or you have no professional maintenance knowledge, and you have not returned the same accessories, you can return to the electrical repair shop to check and repair.

FYI.

If the air conditioner appears E7, it is an air conditioner failure** is an overcurrent or phase sequence protection Xiaoyu Huwai feedback failure.

If it is not a new machine, it can be concluded that it is overcurrent protection, and its overcurrent protection means that the voltage is low, and the compressor can be replaced to start the capacitor, which can basically solve the problem on the virtual front, which is a common problem of old air conditioners.