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7. Troubleshooting
7A. Customer Support
provides solutions for some UPS problems. If you need
more help, please call the nearest
office or Best Power’s Worldwide Service. (See
the beginning of this manual; you can reach Worldwide Service at 1-800-356-5737 in the
U.S. and Canada or at 1-608-565-2100.) Please have your UPS model number and serial
number when you call. The model number is printed on the UPS front panel; the serial number
is on the back panel label. Best Power’s service technicians have in-depth knowledge of the UPS
and power problems.
Best Power may tell you the UPS must be returned. If this happens, Best Power will give you a
Return Material Authorization (RMA) number. Do not return the UPS without contacting Best
Power first. If you return a UPS, please use the original packing material in which your
unit was shipped to you. If you do not use the original packing material and your unit is
damaged during shipping, you will be responsible for repair charges. Our freight carriers will not
accept responsibility for damage to units not packed in Best Power packing. If you have
discarded the original packing material, call the nearest Best Power office; we will send you new
packing material at no charge.
7B. Troubleshooting Table
If the UPS is sounding an alarm, see
. For other problems, see the table on the next two
pages.
The UPS always runs
on battery power (the
yellow Battery light is
always on).
Problem
• The detachable cord may not
be completely plugged into the
back of the UPS or the wall
outlet.
• The wall outlet may not be
providing power.
• The fuse may need replacing.
• The input power available at
your outlet may be unstable.
Possible Reason for Problem
• Make sure the cord is
completely plugged into the UPS
and the wall outlet.
• Try a different outlet.
• Replace the fuse. (See Section
• Try switching the DIP
switches that adjust Line
Sensitivity and the Input Voltage
Range. (See
What to Do