2, check whether the high and low pressure is normal when the unit is running.
3. Check (whether the pipe temperature sensor is normal) whether the line is in good contact with the plug-in on the circuit board, whether the pipe temperature sensor is firmly fixed, whether the evaporation of the indoor unit is good, especially whether the pipe temperature detected by the pipe temperature sensor reaches the cooling or heating temperature.
4. Check whether the condenser surface is too dirty, and if it is too dirty, clean it.
5. Check whether the outdoor motor and fan capacitor are damaged or not. If damaged, please replace it.
6. If the above conditions are normal, replace the electric control board.
Tianjia Central Air Conditioning Equipment Co., Ltd. is a Sino-British joint venture specializing in the production of central air conditioners. Its main products include energy-saving commercial air conditioners, energy-saving central air conditioners and related supporting products. Tianjia Company has gathered the technical, sales and management elites of central air-conditioning industry, and is the fastest-growing, healthiest and most dynamic company in China central air-conditioning industry.