Schumacher Electric PID-500-USB Owner's Manual page 11

PROBLEM
Alarm is on.
(continued)
Converter does
not turn on.
Device does not
operate properly
when first
connected to the
converter.
POSSIBLE CAUSE
Display shows . Device
demands more than the
converter's continuous
power rating.
Display shows .
Converter is too hot.
Poor contact at terminals
Fuse is blown.
The converter may not
have the required capacity
to operate the device.
REASON/SOLUTION
Cycle the converter power OFF
and ON. If problem persists,
use a larger converter or a
smaller device.
Increase the ventilation to the
converter. Move the converter
to a cooler area. Reduce the
power consumption of the
device. The converter will
automatically reset after cooling.
Check for poor connection to
battery or power supply. Make
sure connection points are
clean. Rock clamps back and
forth for a better connection.
A blown fuse is usually caused
by reverse polarity or a short
circuit within the converter. To
replace, contact a qualified
service technician who will
diagnose the problem and
replace the fuse(s) with the
appropriate replacement(s).
Turn the converter switch OFF
and ON, to reset the converter.
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