Page 16
Letter Audio
Code
Alarm Message What It Means What To Do
A – Low Battery The battery charge is low because
the system was running on battery
power, or the DC Switch is not on.
The UPS will shut down. Before this alarm, you should
have received a “Low Runtime” alarm (
) to warn
you to shut down your equipment. When AC power
returns, turn FERRUPS on again. The green
CHARGING LED should light as the batteries
recharge.
B– Near Low Battery The battery voltage has reached the
Near Low Battery setpoint.
The alarm should clear itself when the battery charger
has charged the batteries enough.
C– – High Battery There may be a problem with the
charging circuit or parameter
settings.
Phone Best Power’s Worldwide Service.
D– Low Runtime The unit is running on battery
power, and the battery runtime
remaining is low.
Do an orderly shutdown of your equipment. Then turn
FERRUPS off to conserve battery power. When AC
input power returns, turn FERRUPS on again.
E Low AC Output The output voltage is below a
preprogrammed setpoint.
The UPS will shut down. Shut down your equipment or
bypass the UPS, and turn the UPS switch off. Phone
Best Power’s Worldwide Service.
F – High AC Output The output voltage is higher than
the alarm setting.
Phone Best Power’s Worldwide Service.
G– – Output Overload Your equipment is drawing more
volt-amps (power) than the UPS
can provide. (See your model’s
VA rating.) The unit will continue
to run with overloads as high as
125% for 10 minutes and then shut
down.
Reduce the amount of equipment using FERRUPS
power and turn FERRUPS on again. If the problem
persists, phone Best Power’s Worldwide Service.
H Hi Ambient Temp The temperature inside the unit is
too high. If the temperature
reaches a preset point, the unit will
shut down.
If the UPS has shut down, call Best Power’s
Worldwide Service. If not, shut down the protected
equipment and FERRUPS, correct the cause of the high
temperature if possible, and turn FERRUPS on again.
If the problem persists, phone Best Power’s Worldwide
Service.
I Hi Heatsink Temp The inverter temperature is too
high. If the temperature reaches a
preset point, the UPS will shut
down.
If the UPS has shut down, call Best Power’s
Worldwide Service. If not, shut down your equipment
or bypass the UPS; turn the UPS off. Phone Best
Power’s Worldwide Service.
J – – – User Test Alarm The user is testing the alarm
feature.
To start the user test alarm from the control panel, press
[CONTROL] [8] [ENTER] [ENTER]. Repeat the
procedure to turn the alarm off.
K– – Hi Transfmr Temp The transformer temperature is too
high. If the temperature reaches a
preset point, the UPS will shut
down.
The UPS may have shut down; if so, call Best Power’s
Worldwide Service. If the UPS has not shut down, shut
down your equipment or bypass the UPS; then, turn the
UPS off and call Best Power’s Worldwide Service.
L – Check Charger The UPS has detected a charger
problem.
Phone Best Power’s Worldwide Service.