I’ve been using ANERN for a long time in a lot of places, and it’s very reliable. However, i have an AVR in the house regulating the input power , and i connect the power to the input port, the AVR before the invertor and the battery charger after the invertor starts making screeching sounds , and when i disconnect the input power, it stops.
AVR—> anern invertor–> house and battery charger
If the invertor is generating electricity from PV or batteries without plugging in the input power, the battery 12 volt charger functions normally, and the problem occurs when the input power is plugged in,
AVR/Battery charger starts making noisy sounds
Anyone can helps
