[Resolved]  Exide Industries — Home ups

I bought Exide inverter gqp GQP 850 model inverter on 25 June 2020 it's serial no is [protected] and registered paperless warranty from the day of purchased I hear a humming noise but gradually it started to sound abnormal nowadays sounds abnormal I even contacted the seller he told me it's a fan noise but continuosly the humming noise is heard throughout the day I need a proper support from your side this is my second mail to your consumer complaint portal waiting for your positive response...