American Power Conversion UPA9 User Manual
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Troubleshooting
Problem
Probable Cause
Solution
LED lights when
plugged in, but computer
operates on battery.
The UPA voltage selector was
not properly set.
Unplug UPA from power source, select
correct voltage setting (see “Compatibility
Guide”), plug UPA back in.
LED does not light when
plugged into a car.
The fuse inside the UPA’s AUTO
power adapter plug is ’blown’.
Unscrew the tip of the AUTO power
adapter plug and replace the fuse.
LED has turned off;
computer operates on
battery.
UPA voltage selector was
changed while the UPA was in
use.
The UPA has protected the
notebook from a voltage spike.
Unplug UPA from power source, wait 10
seconds, plug UPA back in.
LED has turned off;
computer operates on
battery and UPA is hot to
the touch.
The computer required more
power than the UPA could
provide. UPA is located in a
place where it can not dissipate
heat adequately.
UPA will automatically restart once it has
cooled. Try to place the UPA in a cooler
area, with better air circulation (i.e.:
outside of a Notebook Case). You can also
change the power management properties
of your notebook to a lower power mode.