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Troubleshooting Reference
38
Measured
output voltage
is too low.
Use of
average-reading, AC
voltmeter to read
output voltage.
Battery is almost fully
discharged.
Modified sinewave (MSW) output
of the Jazz PP 300 C requires true
RMS reading meter, such as Fluke
87 series, for accurate measurement.
Press Battery Status button and
recharge the Jazz PP 300 C as
necessary. Battery Level indicators
are only accurate when the Jazz PP
300 C has been disconnected from
all appliances and all charging
sources for fifteen minutes.
The battery
clips of the
jump-start
cables measure
zero volts.
No voltage is present
at the battery clips of
the jump-start cable
unless they are
properly connected to
the external battery.
Connect battery clips of the jump-
start cable correctly to the external
battery.
Charging light
is Off when
AC Charger is
connected
No AC power at wall
receptacle.
AC Charger is faulty.
Ensure power is available at
receptacle.
Replace AC Charger.
Overload
shutdown
Appliance power
requirements exceed
the capacity of the
Jazz PP 300 C.
Unplug the appliance and confirm
that the appliance’s power
requirement is 300 watts or less
before attempting to restart the
appliance.
Extreme
overload, 40
amp external
fuse opens.
Appliance power
requirements greatly
exceed the capability
of the Jazz PP 300 C.
Replace the fuse with a 40 A, 32
VDC automotive blade-type fuse
which is available at many
automotive parts stores.
Reduce appliance power
requirements to within power rating
of the Jazz PP 300 C.
Table 4 Troubleshooting reference
Problem Possible Cause Solution
Jazz 300.book Page 38 Thursday, February 28, 2002 11:36 AM