Changhong air conditioner can t be turned on, what is the problem?

The main reasons why the air conditioner cannot be turned on are as follows:

1. Check whether the power cord is normal, usually if the air conditioner has a "beep" sound, it means that the air conditioner is basically normal, if there is no sound, it is necessary to check whether the power supply line is normal, if it is normal, it may be a remote control failure.

2. Check whether the remote control battery is charged, or whether the positive and negative poles of the battery are reversed, if there is no problem, it may be that the remote control is faulty.

3. In order to further confirm whether the remote control is faulty, you can turn on the emergency switch of the air conditioner in the air conditioner room when the power indicator is on, whether it is operating normally, if it can operate normally, it means that it is a problem with the remote control.

4. If all of the above are ruled out, it is the failure of the air conditioner host, and you need to find a maintenance worker to disassemble the machine for testing.

Generally, the air conditioner has a manual opening function, either on the indoor unit of the air conditioner, or under the panel of the indoor unit. If you can open it manually open, it means that the air conditioner is no problem, the problem lies in the remote control, the electronic market sells the general air conditioner remote control, 15 yuan a. If it is not turned on manually, it means that there is a problem with the air conditioner, even if the computer board is burned, the computer board will be more than 100 yuan, plus the labor cost of 100, up to 200 yuan.

This is the price list for air conditioning maintenance stipulated by the state:

Maintenance projects.

Less than 1 horse.

2 hp cabinet machine.

3 hp cabinet machine. 5 hp cabinet machine.

10 hp cabinet machine.

Replace the wind vanes.

Replace the air deflector motor.

Replace the capacitor of the indoor fan.

Replace the indoor cross-flow fan blades.

Replace the room fan motor.

Replace the evaporator.

Replace the microcomputer control board.

Replace the remote control receiver.

Replace the temperature sensor.

Replace the toggle switch.

Replace indoor drains.

Replace outdoor drains.

Replace the indoor connection nanometer.

Replace the outdoor connector.

Replace the high-pressure valve.

Replace the low-pressure valve.

Replace the capillary.

Replace the filter.

Replace the outdoor fan motor.

Replace the outdoor fan blades.

Replace the capacitor of the outdoor fan.

Replace the transformer.

Replace the connector.

Replace the compressor capacitor.

Clean the system tubing.

Replace the AC contactor.

Replace the four-way valve.

The inner and outer units are connected to copper pipes (meters).

Negotiable. Canadian domestic Freon (pressure).

Add imported Freon (pressure).

Replace the compressor.

Replace the outdoor relay.

Clean the condenser.

Fill gaps. Suppress.

Emptying. Overhaul, cleaning and maintenance (times).

For the unit after the sudden power failure, the machine can not be turned on, most of it is caused by the damage of the external control board, and the use of a pen to detect whether the line is leakage, or because the compressor and other components are not restored after protection in the case of abnormal current!

Changhong's after-sales service is fucking rotten, and every time he comes to the door, he says that he wants to collect money, which is really hateful!! If the warranty period has not passed, door-to-door maintenance is free, don't be deceived, you can call 4008111666 to consult the situation and complain about him, but it seems that they are all in a group, and it is useless to complain, I just have hit the wall many times, the air conditioner has been broken for more than a month and no one has taken care of it, every time I call, I say to help you implement the local after-sales department, and then give you back** or something, but no one has ever replied** to me, I really don't know how to defend my rights???

1.The power supply used in the air conditioner is too low, and when the voltage is lower than 10 of the single-phase normal voltage (220V), i.e. 198V or below, it is difficult for the refrigeration compressor in the air conditioner to start.

2.If the knob on the temperature controller is not dialed to the appropriate position, if it is dialed to a higher position, when the power supply is connected, the temperature in the air-conditioned room has not reached the upper limit of the set temperature, and the compressor cannot start running, resulting in the air conditioner not being turned on.

3.High pressure relay action, such as the condensing pressure is too high, so that the high pressure relay action stops the operation of the compressor.

4.Low-pressure relay action, such as insufficient refrigerant in the refrigeration system, resulting in the compressor suction pressure is too low, so that the low-pressure relay action stops the operation of the compressor.

5.When the current of the compressor and fan motor is too large, the overload protection relay is activated.

For more information, please contact us.

There may be a variety of reasons why Changhong air conditioner cannot start, and the following are a few common problems for reference:

Power supply problem: The primary reason why Changhong air conditioner cannot start the wheel is that the only fuel energy is a power supply problem. Please check that the socket is energized, that the plug is not loose or damaged, and that the plug is reinserted or replaced.

Remote control battery problems: If you are using a remote control, check if the remote control battery is used up or the battery is in poor contact, replace the battery or reinstall the battery and try again.

Connection cable between the outdoor unit and the indoor unit: Whether the connection cable between the outdoor unit and the indoor unit of Changhong air conditioner is disconnected or damaged, you can check whether the connection cable is loose and whether the connection port falls off.

Cleaning the filter problem: If the filter of the air conditioner is not cleaned for a long time, it will be blocked, causing the air conditioner to work not working properly or even not starting. It is recommended to clean the filter once every season.

If the above methods still do not solve the problem, there may be other faults, and it is best to contact a professional for inspection and repair.

The air conditioner cannot be turned on due to a faulty compressor. If the air conditioner can't be turned on, it's often because there is a problem with the compressor of the air conditioner. In particular, the air conditioner that has been used for a long time has different degrees of compressor aging, so it is found that it cannot be turned on.

The lack of fluoride can also cause the air conditioner to not turn on. As we all know, fluoride plays a role in refrigeration. Once there is a lack of fluoride in the compressor of an air conditioner, but people don't know it, if the air conditioner is still running, it will not only cause the air conditioner compressor to not start.

The pipes are frosty, so the air conditioner can't be turned on. There are also air conditioners that have compressors that are in good condition, but they cannot be turned on yet. At this time, it is often because when the master installs the air conditioner, the original air inside is not discharged and unclean, and over time there is ice in this position.

In this case, it is easy to increase the load on the compressor of the air conditioner.

Changhong air conditioner can not turn on, first check whether the power socket has electricity, and then see if the battery in the remote control has power, if it can't be turned on again, you should contact Changhong air conditioning after-sales service**, can solve the problem.

Changhong air conditioner that has not been used for a long time,There will be such a problem,First of all, you need to wipe the dust on the Changhong air conditioner,You can also find a professional cleaning air conditioner master to clean,By the way, check the plug-in power supply of the air conditioner,As well as the plug-in board,Then go to restart Changhong air debugging to try。 2. If the fluoride in the Changhong air conditioner is missing, the Changhong air conditioner will not be able to refrigerate, and the phenomenon of not opening can not be opened, at this time, it is necessary to check whether the fluoride is missing, if it is missing, you can add fluoride, so that the Changhong air conditioner can be reopened and started running. 3. If the Changhong air conditioner is relatively new, and there is no shortage of fluoride, at this time it is necessary to check the problem of the pipeline, to see if it is due to the problem of exhaust, which leads to the phenomenon of frosting.

Specifically, these three questions.

I hope mine can help you and have a great day!

That's the problem with the remote control or the main control board, the remote control signal receiving board.

You can replace the battery of the remote control with a new one to see the status change.

If it still can't be switched on and off normally, it is necessary to report to the air-conditioning product manufacturer for after-sales repair, so that the maintenance personnel can check the maintenance and eliminate abnormal faults.

Hello, the remote control of Changhong air conditioner is not good to turn on the air conditioner; 1.The Changhong air conditioner remote control is broken, we can use the manual air conditioner switch to turn the air conditioner on and off. The manual switch position of Changhong air conditioner is:

If it is a wall-mounted air conditioner, open the air conditioner box, there is a small box inside, which can be opened and closed with a wooden stick. 2.If it is a vertical air conditioner, please open the air conditioner control panel, there is a switch in the lower right corner of the control panel, which can be used to turn on the air conditioner.

However, it is not a last resort, and it is best not to use manual switches to turn the air conditioner on and off. Frequent opening of the case can cause the case to loosen. There are now many brands of mountain imitation air conditioners, and there are also many traditional power brands that manufacture electricity.

Changhong is one of the most famous brands. Changhong air conditioner is still very good and profitable.

First, the power supply reason:

1. The power supply is not connected or out of power, the power conductor socket is not in good contact, or the power conductor wire diameter is thin or aging.

2. The power supply voltage is low. Starting voltage of fixed-frequency air conditioner: 187V, voltage fluctuation range: 198-242V, starting voltage of inverter air conditioner: 156V, voltage fluctuation range: 176-264V, it is recommended to install a voltage regulator at home.

Second, the reason for the remote control:

1. The screen appears garbled or frozen. Press the reset button to disarm, or the battery is low.

2. The temperature is not displayed. In air supply or automatic mode, the remote control does not display the temperature.

3. If the receiving head is broken or cannot work normally due to moisture, check the transmission of the remote control signal. Use a digital camera (mobile phone is also available) to point at the transmitter port of the remote control, and press any button on the remote control to see if there is an infrared signal emitted.

4. The remote control mode is incorrect, or the temperature setting does not meet the boot conditions. When cooling, the set temperature should be less than the indoor temperature, and when heating, the set temperature should be greater than the indoor temperature.

5. The battery of the remote control is low, which will cause the remote control distance to be short or unable to be remotely controlled. It is recommended to remove the remote control battery when the air conditioner is not in use, and reinstall or replace it when in use.

3. Protection function:

1. Protection. In order to protect the life of the press, a protection circuit is designed in the control circuit of the air conditioner computer board, and the press is started after 3 minutes.

2. Prevent heating and cold air. When the air conditioner is heating, when the temperature of the indoor unit coil is lower than a certain value, the internal unit does not run, and generally after 3-5 minutes of preheating, the internal unit starts to work.

3. The computer program of the air conditioner is chaotic, which makes the machine unable to work immediately.

4. Function lock protection. Some models have a child lock function, if you are in lock mode and cannot perform any operation, you can remove it according to the manual.

1.If the battery is insufficient, the human-machine dialogue function may not operate normally, and the air conditioner cannot receive the indoor temperature after being turned on, and the temperature difference cannot be formed and cannot be started.

2.When the air conditioner is turned on for the second time to cool or heat, there will be a delay of 3 minutes when the compressor is turned on.

3.When the air conditioner is heating, the indoor unit and outdoor unit are preheated in advance, and during heating, in order to prevent cold air from blowing out at the first opportunity, the air conditioner will automatically run the anti-cold air function.

4.Whether the outdoor temperature is too low: When the fixed speed is below minus 8 degrees Celsius, the inverter is below minus 10 degrees Celsius, and the DC inverter is below minus 18 degrees Celsius, there may be a long standby.

5.The voltage is too low or too high to exceed the normal operating range of the air conditioner.

6.Other signal interference (such as "mobile phone, fluorescent lamp") air conditioning communication, power off for 3 minutes, and then power on.

7.The compressor cylinder or starting coil is burned, and the capacity of the compressor starting capacitor is insufficient or burned.

It is not excluded that the power of the Changhong air conditioning remote control is insufficient, and then a group of batteries will be replaced, if the battery is still not good, there are a few infrared devices that can be remotely controlled for a long time, and it is also possible that the main board of the air conditioner is broken, this must be repaired in a professional repair shop.

Solution: 1. The remote control of Changhong air conditioner is locked, the lock icon is displayed on the display of the remote control, the button of the remote control does not respond, and it is mainly composed of buttons that generate different information from the integrated circuit substrate, and the remote control is mainly composed of a microprocessor chip, a crystal oscillator, an amplification transistor, an infrared light-emitting diode and a keyboard matrix that forms a remote control signal.

2. The remote control of the air conditioner is damaged, the LED of the remote control of the air conditioner is broken, and the button is not responding.

3. The substrate of the air conditioner is broken, and there is no response when the remote control of the air conditioner is pressed.

4. See if there is still electricity in the remote control of the empty Bi Pei tune.

5. There is a problem with the remote control receiver of the air conditioner.

6. During the peak period of electricity consumption, the voltage is high and unstable, which leads to the overcurrent protection of the compressor, and the solution can be to increase the stabilizer.

7. The outdoor temperature is high, and the poor refrigeration effect of air conditioning can easily lead to the stop of protection and lead to protection.

8. If the indoor fan fails, the outdoor fan is not blown out, the outdoor fan is stopped from failing, the frost is seriously defrosted, and the cold air prevention function enters the room.

<> The reason why the air conditioner cannot be turned on: it may be that the compressor fails to start; When cleaning the air conditioner, the circuit system is not turned off when it encounters water or the power supply, resulting in a short circuit fault in the circuit system; Compressor overheating protection, voltage instability protection; The control panel fails to press the noisy button, resulting in the manual failure to start the fluid; The air conditioner cord is damaged or the outlet is out of power.

This answer is suitable for most brands of air conditioning models such as Hisense, Gree, and Midea.