Sima Products STP-1000T - Manual (Page 13)

Troubleshooting
Problem Cause Solution
Unit does not operate Input voltage is below
10 volts Attach to proper supply
Fuse blown Determine cause for fuse blowing
and then replace fuse feeding
inverter.
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 warm
Inverter is in thermal
shutdown mode
Allow inverter to cool down. Turn
inverter off and back on to reset.
Low battery alarm is
on
Input voltage is below
10.2 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.
Light Status Chart
Power
Switch
Power
Light
Beeper Fan Fault Light Mode
Off Off Off Off Off Unit is off
On On Off On Off Normal Operation
On On On On Off Low input voltage, 10.2 to 9.7 volts
On On On On On Low input voltage, less than 9.7 volts
On On Off On On High Input voltage, greater than 15V
On On Off On On Unit over temperature or overloaded
On Off Off Off Off No 12 VOLTS input to inverter
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