Chapter 11 Troubleshooting
57
Error
Code
Meaning Possible Cause Solution
Sd4
Battery
Low Shut-
down
The UPS transfers to
run in battery mode
due to AC utility abnor-
mality; however, the
battery power is almost
used up.
1. Check the main AC source
and the main power cord’s
status.
2. Contact service personnel.
B. About other problems that might happen
No. Problem Possible Cause Solution
1 Overload The UPS is overloaded.
Decrease your con-
nected loads.
2
Battery
Missing
1. Wrong battery wiring.
2. Battery cables are
not connected or not
¿UPO\FRQQHFWHG
1. Contact service
personnel.
2. Connect the battery
cables and connect
WKHP¿UPO\
3
Weak Battery/ Battery
Replacement
Batteries are damaged
or battery life time is
due.
Contact service person-
nel.
NOTE :
If all possible causes are eliminated but the alarm still appears, please
contact your local dealer or customer service.
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