● Power supply is not connected. Check if the power cord is connected to power socket, air switch and emergency switch is turned on or not, power lines are well connected. ● Low-voltage switch power is at fault. Check low-voltage switch power input and output sockets, if input and output power are normal. ● Control panel is at fault.
Tel.: +86 185 1902 9051/0534-2756245
Mob: +86 185 1902 9051
WhatsApp: +86 185 1902 9051
Add: F/2-F/8 Qunyinghui Bldg, Jinyuan RD.32, Daxing Economic Development Zone, Beijing/No.1678,Chongde 1 Ave.,Songguantun St., Economic and Technological Development Zone,Dezhou,Shandong CHINA