PURE SINE WAVE HOME UPS
Trouble
Shooting
(7)
REV.08-06-07
TROUBLE SHOOTING
Symptoms
Symptoms
No Power during
backup mode
Main Power is coming.
Home UPS shows
mains fuse blown on
its display panel
There is no output
power
Home UPS does
not operate
Home UPS trips
frequently at back
up mode
Low surge power
Low/High AC output
voltage
System shut down
after 20 sec, no display
Rectifications
Problem
Remedy
Check if low battery LED is glowing, switch OFF the
Home UPS by power active switch. Allow the battery
to charge before running the Home UPS on battery
again.
Reduce the load and replace the glass fuse of specified
rating given at the rear side of the Home UPS.
Low Battery
Check condition of batteries &
recharge
Loose or corroded
battery connections
Loose AC output
connections
Measuring with the
wrong voltmeter
Output of Home UPS
is wired back to its
own input
Check the proper AC input and
output wiring
Weak batteries or
battery cables too
long
Refer to cable and battery
recommendations in this
manual
Meter must be a true RMS
reading meter
Check all AC output connections
Check and clean all connections
Check if overload/short circuit LED is glowing. Reduce
load and reset the Home UPS by Power Active switch.
Check the battery connections.
Reduce the load and restart the Home UPS through
the power active switch.
