P91 Lead Acid 2U User’s Manual
Uninterruptible Power Supply
Xtreme Power Conversion Corporation
Page 25
Symptom
Possible cause
Remedy
Fault code is shown as 14 on LCD
display and alarm is continuously
sounding.
The UPS shut down
automatically because short
circuit occurs on the UPS
output.
Check output wiring and if
connected devices are in
short circuit status.
Fault code is shown as 01, 02, 03,
11, 12, 13 and 41 on LCD display and
alarm is continuously sounding.
A UPS internal fault has
occurred. There are two
possible results:
1. The load is still supplied,
but directly from AC power
via bypass.
2. The load is no longer
supplied by power.
Contact your dealer
Battery backup time is shorter than
nominal value.
Batteries are not fully
charged
Charge the batteries for at
least 5 hours and then check
capacity. If the problem still
persists, consult your dealer.
Batteries defect
Contact your dealer to
replace the battery.
Fault code is shown as 2A on LCD
display and alarm is continuously
sounding.
The short circuit occurs on
the charger output.
Check if battery wiring of
connected external pack is in
short circuit status.
Fault code is shown as 45 on LCD
display. At the same time, alarm is
continuously sounding.
The charger does not have
output and battery voltage is
less than 10V/PC.
Contact your dealer.
5. Storage and Maintenance
Operation
The UPS system contains no user-serviceable parts. If the battery service life (3~5 years at 25°C
ambient temperature) has been exceeded, the batteries must be replaced. In this case, please
contact your dealer.
Storage
Before storing, charge the UPS 5 hours. Store the UPS covered and upright in a cool, dry location.
During storage, recharge the battery in accordance with the following table:
Storage Temperature
Recharge Frequency
Charging Duration
-25°C - 40°C
Every 3 months
1-2 hours
40°C - 45°C
Every 2 months
1-2 hours
Be sure to deliver the spent battery to a recycling facility or ship it to your
dealer in the replacement battery packing material.
