Luminous Inverter — NOT SUPPLYING THE POWER

I PURCHASED FROM INVERTER FROM AUTHO RISED DELAER, ITS LESS THAN YEAR AND IT NOT SUPPLYING THE POWER.I AM FORM NEPAL,MY INVERTER IS EVERY TIME OVER LOAD LED IS ON,ALL MAIN SWITCH OFF ALSO BLINKING OVER LOAD AND BATTERY ALSO FULL IN CHARGE,ALL OUT PUT LINE IS ALSO Disconnected BUT ALSO SEEN OVERLOAD condition.SO PLS WHAT CAN I DO SIR,I AM FROM NEPAL.SO SIR PLEASE HELP ME.
My email : [protected]@yahoo.com.