Trouble Shooting Guide

Problem

Cause

Solution

UPS fails to start when On/Off button is pressed

UPS output short circuited or overloaded

Ensure Ups is off. Disconnect all loads and ensure nothing is lodged in output receptacles. Ensure loads are not detective or shorted internally

Internal fuse is blown, indicating internal fault

Do not attempt to open or service the Ups. Contact your dealer

Mains indicator flashing

UPS not plugged in

UPS is operating in battery mode. Make sure that UPS is securely plugged into the wall receptacle

UPS input protection has opened

UPS is operating in battery mode. Save data and close applications. Replace UPS input fuse or reset input beaker, then restart UPS

Mains voltage out of UPS input range

UPS is operating in battery mode. Save data and close applications. Ensure mains supply voltage is within acceptable limits for UPS

UPS has reduced battery time

Battery not charged

Keep UPS plugged in continuously at least 24 hours to recharge batteries

UPS is overloaded

Check load level display and remove non-essential loads

Batteries may not be able to hold a full charge due to age

Replace batteries

"Fault" indicator and diagnostic LED "A" are illuminated

UPS fan failure or battery overcharge

UPS requires service. Contact your dealer

"Fault" indicator and diagnostic LED "B" are illuminated

UPS failed the battery test.

Replace batteries

UPS shut down. "Fault" indicator and diagnostic LED "D" are illuminated

UPS overloaded or load equipment is faulty

Check load level display and remove non-essential loads. Recalculate load VA and reduce number of loads connected to Ups. Check load equipment for faults

UPS shut down with the "Fault" indicator and diagnostic LEDs "A" and "B" are illuminated

UPS shutdown due to internal failure

UPS requires service. Contact your dealer

UPS shuts down with the "Fault" indicator and diagnostic LEDs "A" and "D" are illuminated

UPS shutdown due to an internal over temperature condition

Ensure UPS is not overloaded, ventilation openings not blocked, or room ambient temperature not excessive. Wait 30 minutes to allow UPS to cool, then restart UPS. If it does not restart, contact your dealer

UPS shuts down with the "Fault" indicator and diagnostic LEDs "B" and "D" are illuminated

UPS shutdown due to a command from the communication port

Your UPS has received a signal or command from the attached computer. If this was inadvertent, ensure the communication cable used is correct for your system. For assistance, contact your dealer