UPS Issue

[Nikol Sahoo..]

I am using iBall Nirantar UPS-621V for like 7 years with no issues (exception: previous year I changed it's battery, with genuine one's ment for it) but recently I have a very irritating issue. This UPS makes a beep sound when main power is offline and my pc is running on UPS which is normal but now whenever I switch it on it makes that beep sound repeatedly periodically after 1 or 2 seconds or even sometimes it becomes like the pistons of a car engine making that beep noise periodically after like 0.1 seconds and I also noticed a tick sound also( it get fixed automatically after 2 minutes or sometime half an hour). I contacted a local technician and he said the there might be some voltage fluctuations but it is not the case as all my home electrical appliances are working fine. Anyone please help me to fix it. 

[GuiltySpark_]

https://mordencomputers.wordpress.com/wp-content/uploads/2014/06/iball-nirantar-ups-621v-user-manual.pdf

 

Is the status LED changing when this happens? Are you overloading it? 

[Nikol Sahoo..]

18 minutes ago, GuiltySpark_ said:

https://mordencomputers.wordpress.com/wp-content/uploads/2014/06/iball-nirantar-ups-621v-user-manual.pdf

 

Is the status LED changing when this happens? Are you overloading it? 

The led light will be green and not change its colour and overloading,well,I have not upgraded my pc for 10 decades nor I have connected something else to it and also it worked fine in past without any issues.