What is the reason why the air conditioner doesn't respond?

The reasons why the air conditioner does not respond when it is turned on are as follows:

1, power supply reason

If the power supply of the air conditioner is not connected properly, or it is not connected properly, the air conditioner will not turn on. Poor contact of power line socket, thin or aging power line and low power supply voltage are all reasons.

2. The battery is low.

If the air conditioning screen appears garbled or frozen, you can press the reset button to clear it, or it may be caused by insufficient battery power. The temperature is not displayed. In the air supply or automatic mode, the temperature is not displayed, which may be due to the failure of the receiver or the damp. Need to check the transmission of remote control signal.

Aim the digital camera at the transmitter and press any key to check whether there is infrared signal, the mode is incorrect and the temperature setting does not meet the boot conditions. When cooling, the set temperature should be lower than the indoor temperature. When heating, the set temperature is greater than the indoor temperature.

Low battery power of air conditioner will also lead to short remote control distance or no remote control. It is suggested that the battery should be taken out when the air conditioner is not in use, and then installed when it is in use.

3. Protection function

In order to protect the life of the press, protection circuits are designed in the computer board control circuits of many air conditioners. The press conference will begin in a few minutes. Heating cold air prevents the indoor coil temperature from falling below a certain value when the air conditioner works.

There is something wrong with the computer program of the air conditioner, which makes the machine unable to do its scheduled work. Functional lock protection, some brands or models have child lock function. If you are in the locked mode and can't do anything, you can refer to the instruction manual to release it.

Solutions to the faults of air-conditioning remote controller

1. After inspection, if it is found that the air conditioner does not start because of the internal fault of the air conditioner remote controller, it is necessary to check whether the battery in the remote controller is charged before replacing the battery on the air conditioner remote controller when repairing the remote controller.

2. If you can't replace the battery, you can check whether the positive and negative shrapnel of the battery are corroded and rusted, resulting in poor contact of the power supply of the remote controller. If this is also the cause of the failure of the air conditioner remote control, then you need to scrape the rusty place with a blade or sandpaper and replace the battery.

3. After using the above method, the air conditioner remote controller still can't be used. We need to check whether there is any problem with its crystal oscillator in the air conditioner remote controller. Crystal oscillator is the most prone to failure in air conditioning remote control, and it is easy to wear. If the problem appears here, please replace it.

4. After checking the crystal oscillator, check whether the LED of the remote controller is damaged. At this time, a multimeter can be used to measure whether the output voltage of the remote control integrated block has changed. If the voltage changes, it means that there is a signal output from the dust collection block and there is something wrong with its infrared emission tube. If the voltage is constant, the integrated circuit is broken. In this case, it is not necessary to repair the remote control. Get a new remote control.