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Troubleshooting Table - If LEDs are Lit.
7.
LEDs Lit
Audible Alarm
Two Beeps
per second
Two Beeps
per second
No Audible Beep
Five beeps
initially, then
no sound
Constant Beep
Constant Beep
Constant Beep
Constant Beep
Constant Beep
Alarm Description
The UPS is overloaded. Your
equipment needs more power
than the UPS is rated to
provide. The UPS operates in
bypass mode.
The UPS is overloaded. (In
Battery Mode) Your equipment
needs more power than the
UPS is rated to provide. The
UPS operates in bypass mode.
The UPS is doing a battery
test. The 4 operating modes
lights flash counter-clockwise
in sequence.
If the battery LED is flashing,
this means replace the battery.
If the battery LED is off, this is a
High Ambient Temperature alarm.
High output voltage or inverter
short circuit.
High DC bus voltage
Bypass static transfer switch is
shorted. The bypass static
transfer switch was shorted when
the line (mains) circuit breaker
was turned on.
Inverter static transfer switch is
shorted. The inverter static
transfer switch was shorted when
the UPS was started.
Page 3
What You Should Do
Shut off the least important equipment
connected to the UPS. If this solves the
problem the UPS will switch from bypass back
to normal operation.
Shut off the least important equipment
connected to the UPS. If this solves the
problem the UPS will switch from bypass back
to normal operation.
No action needed. The UPS will return to
normal operation when it successfully
completes the battery test.
Phone the nearest Best Power office.
Make sure the UPS units fans and vent holes are
not blocked, and make sure the temperature at
the UPS location is not above 40 degrees C (104
degrees F). If these conditions did not cause the
problem, phone the nearest Best Office.
Phone the nearest Best Power office.
Phone the nearest Best Power office.
Phone the nearest Best Power office.
Phone the nearest Best Power office.
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