F1 meaning: Internal and external unit communication failure or indoor return air sensor failure.
Causes of fault:
1. Wrong phase sequence. For example, the 5P air conditioner has a three-phase voltage of 380V. If the phase sequence is wrong, F1 will be displayed. Just adjust the 380V live wire at the main power supply of the air conditioner and change the positions of L1 and L3. If it shuts down completely, there is a communication failure between the indoor and outdoor units. Please check the control circuit board.
2. Lack of refrigerant in the system will also cause this phenomenon, which can be solved by adding fluoride.
3. If the red power light of the internal unit flashes and goes off, the return air temperature sensor is faulty and needs to be replaced.
Brand advantage
Chinese famous brands: Chinese famous trademarks, Chinese famous brands, Chinese energy-saving products.
Super large-scale: 6 major production bases, 16 fully automatic assembly lines, with an annual production capacity of 9.5 million sets.
Professional manufacturing: 17 years of professional manufacturing history of air conditioners.
Leading technology: national postdoctoral workstation, Japanese industrial design.
First-class equipment: 10 sets of Japanese Nippon Precision Machinery "two-machine" production lines; 5 sets of Siemens SMT placement machines; 8 sets of German Wagner automatic spraying lines; 38 sets of Finnish multi-function punches.
Efficient and energy-saving: Using Panasonic, Hitachi, Toshiba and other international brand compressors, it provides powerful cooling and heating, saving up to 31.8% of electricity, and has obtained the latest international energy-saving certification.
High quality and affordable price: The homemade parts rate is as high as 90%, effectively ensuring product quality and highlighting the cost advantage.
Silent and comfortable: the first domestically produced double-silent system inside and outside, with noise as low as 24 decibels, providing peace and quiet.
Star service: 6-year repair guarantee, 10-year inspection-free, more than 8,000 service outlets, 24-hour service.
Full of "certificates": it has successively won European CE, German TUV, ISO9000, Australian energy efficiency and other certifications, and its products are exported to more than 120 countries and regions.