Powercom 400 - Manual (Page 9)

9
A few helpful hints:
-Periodically vacuum dust from ventilation openings.
-Occasionally wipe exterior with a damp cloth.
5 TROUBLESHOOTING
If the UPS fails to operate properly, please check the following
TROUBLESHOOGING CHART. If the unit is to be returned for service, please
note the following information and pack it in the original carton .
a. model number, serial number.
b. Date of purchase.
c. Full description of problem.
TROUBLE SHOOGING CHART
PROBLEM POSSIBLE CAUSE ACTION TO TAKE
main switch not on turn on the main switch
battery failure battery voltage
less than 10V replace or recharge the battery call
for service
UPS not on
LED not light
PC board failure replace the PC board, call for
service
power cord lose replug the power cord.
AC fuse burn out replace the AC fuse
Line voltage too high, too low or
black out normal condition
UPS always at battery
mode
PC board failure replace PC board, call for service
battery not fully charged recharge the UPS at least 4 hr. Back up time too short
PCB failure replace the PC board, call for
service
LED rapidly blinking
Buzzer rapidly beeping over load remove the least critical load
6 BATTERY REPLACEMENT
Your battery should run any where from 3-5 years before eve needing to be
replaced.
Please follow the instructions below for easy battery replacement.