APS SURT8000XLI unknown fault. Please help !!

Anonymous user · ‎2021-06-29

Dear all:

I don't know what this LED mean of fault singal. Please help me and let me know. Thank so much!!

BillP · ‎2021-06-29

The image on the left means replace battery - how old are your batteries? may be time for replacement. The fault on the right relates to a Battery Capacitor Soft Start fault which directly relates to battery problems too.

I'd advise you let us know the battery age and if available, measure the DC voltage from each string connector so we can see what the voltage is. Either way, you probably need good batteries to get this UPS back up and running properly.

See Answer In Context

BillP · ‎2021-06-29

The image on the left means replace battery - how old are your batteries? may be time for replacement. The fault on the right relates to a Battery Capacitor Soft Start fault which directly relates to battery problems too.

I'd advise you let us know the battery age and if available, measure the DC voltage from each string connector so we can see what the voltage is. Either way, you probably need good batteries to get this UPS back up and running properly.