15
Troubleshooting
Problem Cause
Solution
Unit does not operate Input voltage is below
11 volts
Attach to proper supply.
Charge batteries.
Fuse blown
Determine cause for fuse blowing
and then replace fuse feeding
inverter.
Fan does not run but
unit operates
Normal when unit is cool
Unit operates for a
short period and
then turns off
Load is trying to draw too
much current
Be sure load is less than rated watts
of inverter. Remove excessive
load. Turn inverter off and back
on to reset.
Unit operates for a
while and gets hot
Inverter is in thermal
shutdown mode
Allow inverter to cool down and it
will reset automatically.
VOLTS meter
indicates 10.5 volts
and alarm is on
Input voltage is below
10.5 volts
Make sure car engine is running.
Check condition of wiring.
Battery may be low and needs
recharging.
Television and stereo
interference
RF interference from
power inverter
Position the power inverter and
wiring as far as possible from
electronic equipment, antenna and
cables and reorient as necessary.
115 VAC Output
voltage reads
incorrectly
Modified sine wave
output can cause
incorrect reading on a
typical multimeter
Use a true RMS meter like a Fluke
8060A or Triplett 4200 to measure
correct voltage.