Specifications

The Troubleshooting Guide tells you how to solve problems you may encounter with your

Compaq UPS.

Symptom Possible Cause What To Do

UPS will not start Line cord is not connected Connect line cord

Circuit breaker on rear Push circuit breaker button

panel is open

Wall socket is dead Test wall socket

Battery fuse or circuit open Contact service center

LED 5 is RED Ground wire or connection Have a qualified electrician establish

(Site Wiring Fault) does not exist in wall outlet grounding connection

Line & neutral wires are Have a qualified electrician correct

reversed in wall outlet the wiring

Flashing Battery DC overvoltage condition Call Customer Service

Service LED (LED 10)

and alarm won’t clear

LED 10 is RED Potential battery failure Let UPS go through a full charge

(Battery Service) cycle by keeping it plugged in for

24 hrs; push Test/Alarm Reset button

New battery improperly Check connections or call

connected Customer Service

UPS switches Input voltage in your Change UPS nominal input to match

frequently area differs from the local nominal

between battery UPS nominal

and AC input

LED 10 (Battery UPS out of service for a long Keep UPS connected to line for at

Service) is red period least 24 hrs.and then conduct self test

during initial start up

LED 11 is Overload condition because Determine if load(s) is defective or if

SOLID RED load is drawing too much too many loads are connected to UPS;

power if so,disconnect a load

LED 1 is Line is high;UPS in battery Correct input voltage problem if

SOLID RED* operation possible or be prepared to lose battery

power to your load(s) in approx.3 to 5

minutes (depending on configuration)

after Impending Low Battery LED

turns on

LED 4 is Line is low (power failure); Correct AC input problem if possible

SOLID RED UPS in battery operation or be prepared to lose battery power

to your load(s) in approx.3 to 5

minutes (depending on configuration)

after Impending Low Battery LED

turns on

LED 4 is Line has returned but Push Test/Alarm Reset

FLASHING RED reset was not pushed

*If the UPS continuously displays a solid red LED 1 or 4 above the AC Input symbol,input voltage range can be extended.

Troubleshooting