Boris industrial air conditioner failure light, phase sequence protector, indicator light is not bright! What happens when machines do not work?! Jiqiu
If the phase sequence is wrong, overpressure and undervoltage will light up. You pick the Chadha phase protector above three lines is not with the main voltage.
The phase sequence protector is not bright, or it is not working, or there is no electricity.
Comrade on the first floor didn't see the phase sequence protector. Did you fix the household 220 AC
If the voltage is normal, you can buy a general more than 200 directly outside. Really not, you sure you did not change the phase sequence (that is, no change to the main circuit, cable, transformer), short on the following two lines directly boot it.
