8.
Troubleshooting Table - No AC in/Out or Battery Problems
Problem
The green LED is not on
even though AC line
(mains) input seems to be
available, and the UPS
beeps every few seconds.
The UPS operates
normally but some of the
loads (protected
equipment) won't operate.
The amount of time the
UPS can run on battery is
less than the rated time.
The yellow Battery LED is
flashing.
Possbile Cause
1. No input power may be available
to the UPS.
2. The input circuit breaker (or fuse)
on the back of the UPS has been
tripped (or opened).
1. The loads are not connected to the
UPS.
2. If the output receptacle has a circuit
breaker, it has been tripped.
The battery may not be fully
charged, or it may be bad, or the
charger may have failed.
The battery voltage is low.
Page 5
What You Should Do.....
1. Make certain the UPS is plugged into
a receptacle with power applied.
2. Reset the breaker (or replace the
fuse) and restart the UPS.
1. Make certain the loads are plugged
into the receptacles on the UPS.
2. Reset the circuit breaker for the
receptacle, by pressing the button or
resetting the switch.
Recharge the battery for at least 10 hours
by connecting the UPS to a source of AC
line (mains) input. Then retest the battery
backup time. If the problem has not been
solved by recharging the batteries, phone
the nearest Best Power office.
Recharge the battery for at least
10 hours by connecting the UPS to a
source of AC line (mains) input. If the
problem continues, phone the nearest
Best Power office.