Aoa friends. I bought a homage ups with LCD display 2 months ago but unfortunately lost its manual during shifting. Now I am having a problem that after irregular intervals, the UPS starts beeping and it just wont shut up by whatever I try. The display shows input and output ( sometimes between 170 and 200 sometimes 200 to 230 Hz) whatever that means. Then there are the 4 bars of battery that seem normal but above that there is a picture of a balance (with the right side down by a bigger ball as compared to the left side) and it starts beeping and blinking. There is also a single bar in front of it and sometimes 2. I am guessing there is some imbalance between the power in and out but cant exactly figure out what. And it is really annoying.
Secondly whats the power button at the side of the UPS for? It doesn't switch it off when I press and release it although the sign of line in does disappear when I do that. Kindly help me with problem. Thank you very much.