- Phone：0086-4006769700 / 021-57406070
- Fax：0086-021-57406123
- Email：4006769700@sunny-hvac.com
- Address：No.128 Huian Road Wuqiao Industrial Park Fengxian District Shanghai China
Air conditioning fault routine maintenance method
1, plug in the power plug, the indoor power indicator light, such as no power instruction, indicating that your home is faulty or the indicator is corrupted.
2, there is a power instruction, press the operation key with the remote control, the signal is not emitted. First, check if the battery in the remote control is electrically, then check whether the positive and negative pole contact of the battery is oxidized.
If the above is normal, check whether the internal board of the remote controller is damaged, the remote control * nearly one modem radio, press the remote control button to perform the interference test, listen to whether the radio is "beep" sound, the sound indicates that the remote control is not faulty.
3. When the remote control is not faulty, the signal is still not running, and the indoor unit can force the switch verification. When the operation is functioning, if the indoor running fan and the outdoor compressor are normal, the cooling effect is good, then proof the air conditioner indoors The machine infrared receiving site has failed.
4. When you use the remote control to install the new battery in less than one month, you can open the rear cover of the remote control, and clean the board and button contact surface to heat the film with 95% alcohol. This method can also be used to exclude the leakage failure.
5, the temperature sensor in the inverter air conditioner plays a very important role, and the indoor unit has air temperature sensors and evaporator temperature sensors;
Outdoor machine has an air temperature sensor, a high-pressure pipeline sensor, and a low pressure line sensor. Some sensors have changed change in the long-term use, so that the control characteristics change, (such as the indoor air temperature sensor resistance "can cause frequency conversion The output frequency is low), in order to ensure the control accuracy, the same working characteristics, after determining the sensor failure, the primary number of products should be exchanged.
6. When the air conditioner fails, if the entire control system is faulty, the switch on the indoor unit controller can be placed on the "trial run" block. At this time, the microprocessor will send a frequency to the inverter 50 Hz. signal of.
If the air conditioner can operate and maintain the frequency constant, it is generally considered that the entire control system has no problem, and it is possible to focus on whether each sensor is intact. If the air conditioner does not function properly, the control system has failed.