18
6C. Alarm Table
Alarm
Message
Alarm
(Morse)
Code
What the Alarm Means
What to Do
CL
I
(• •)
Calibration Lost. This can happen when
you replace the batteries if the UPS is
off and you wait too long to install the
new batteries. The alarm means the UPS
has lost any changes you have made to
parameters via two-way communication;
it may also mean the UPS has lost
internal factory settings.
parameter values since you received the
UPS (including time and date), you must
set these parameters again.
FA
F
(• • – •)
Fan Malfunction. The fan in the LI 1420
is not operating. If the problem
continues, the UPS will shut down.
Call Best Power’s Worldwide Service or
the nearest
office.
Hb
C
(– • – •)
High Battery. Battery voltage is high,
which could mean there are battery or
charger problems. When the UPS
sounds this alarm, it cannot charge the
batteries.
Call Best Power’s Worldwide Service or
the nearest
office.
Lo
Lb
B
(– • • •)
A
(• –)
Near Low Battery. The UPS has run on
battery power for a while and the
batteries are near a Low Battery
shutdown. (See alarm “Lb.”) If the UPS
continues to run on battery, it will soon
shut down and sound a Low Battery
(Lb) alarm. If the UPS switches back to
AC input power before the Lb shut-
down, it will recharge its batteries; the
“Lo” alarm will stop as batteries
recharge.
Low Battery. The UPS has run on
battery power for a while and the
batteries are low, so the UPS has shut
down. The alarm will stay on until the
power outage (or power problem) ends
and the UPS can restart using AC input
power.
To prepare for the Low Battery
shutdown, switch off the equipment
connected to the UPS. If the power outage
ends before the “Lb” shutdown, you can
restart your equipment. If not, the UPS
will restart automatically when the power
outage or power problem ends. Restart the
equipment connected to the UPS. Battery
time will be low until the UPS recharges
its batteries.
Shut down any equipment connected to
the UPS. After the power outage (or
power problem) ends, the UPS will restart
automatically; if you do not want it to do
this, call
UPS restarts, you can start the equipment
connected to the UPS. Battery backup
time (runtime) will be low until the UPS
recharges its batteries.