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Measured inverter output voltage is too low.
Symptom
The AC voltmeter reading is 5 to 15 volts too
low.
Battery operating time is less than expected.
Symptom
The inverter runs for a while, and then the
light comes on. The inverter is cool or warm to
touch.
Possible cause
Suggested remedy
A standard “average-reading”
AC voltmeter has been used to
measure output voltage.
For accuracy, the
XPower 500
modified sine wave output
needs to be measured with a
“true RMS” voltmeter, like a
Fluke 87 series multimeter.
The battery voltage is too low.
Recharge the battery.
Possible cause
Suggested remedy
The battery is old or defective.
Replace the battery.
The battery is not being charged
properly.
Have a qualified technician
check the vehicle’s electrical
system.
Summary of Contents for XPower 500
Page 1: ...by XPower Inverter 500 Owner s Guide...
Page 4: ...iv...