Troubleshooting Guide - Alpha Technologies CFR 600 Operator's Manual

6. MAINTENANCE

6.6 Troubleshooting Guide

SYMPTOM
No Output Power:
"LINE PRESENT" OFF
"LINE FAILURE" OFF
Unit does not
resume LINE
PRESENT operation
when power returns:
"LINE PRESENT" ON
(or flashing)
"LINE FAILURE" ON
"SERVICE" LED ON
Incorrect output
voltage:
"LINE PRESENT" ON
"LINE FAILURE" OFF
"OVERLOAD" ON
CAUSE
Utility power outage;
or
AC power cord
unplugged;
or
AC input circuit breaker
OFF.
and
BATTERY circuit
breaker OFF.
AC line voltage too high
or low;
or
UPS is in its
synchronization mode.
BATTERY breaker
tripped.
or
Internal charger fuse
open.
or
Loose or corroded
battery cables.
or
Bad batteries.
Overloaded output;
or
Shorted output.
54
REMEDY
Plug in AC power cord.
Reset breaker.
Reset breaker.
Wait for voltage to
stabilize.
Wait approximately
one minute for
synchronization.
Reset breaker.
*Replace fuse.
*Clean and tighten
battery cables.
*Replace batteries.
Reduce load.
Check load for short.