Go Power! Modified Sine Wave Inverter
Owner’s Manual
www.gpelectric.com
14
6.0 Troubleshooting
6.1 Common
Problems
Buzz in audio systems
Some inexpensive stereo systems will emit a buzzing noise from their loudspeakers when
operated from the power inverter. This is due to the power supply in the device does not
adequately filter the modified sine wave produced by the power inverter. The only solution
is to use a sound system that incorporates a higher quality power supply.
There are audible low voltage / over load alarms on all GP inverters.
Television Interference
Operation of the power inverter can interfere with television reception on some channels.
If this situation occurs, the following steps may help to alleviate the problem.
Make sure that the chassis ground lug on the back of the power inverter is solidly
connected to the ground system of your vehicle, boat or home.
Do not operate high power loads with the Power Inverter while watching television.
Make sure that the antenna feeding your television provides an adequate ("snow free")
signal and that you are using good quality cable between the antenna and the television.
Move the television as far away from the power inverter as possible.
Keep the cables between the battery and the power inverter as short as possible and twist
them together with about 2 to 3 twists per foot. This minimizes radiated interference from
the cables.
6.2 Troubleshooting
Guide
Problem and Symptoms
Possible Cause
Solution
Low AC output voltage
95-105 VAC.
Using standard
voltmeter.
Use true RMS averaging meter.
Low output voltage and current
indicator in red zone.
Overload.
Turn off. Reduce load, turn on.
No output voltage and voltage
indicator in lower red zone.
Low DC input voltage.
Recharge battery, check
connections and cable.
Inverter switched off. No
power to inverter.
Turn inverter on. Check wiring to
inverter.
Internal fuse open.
Have qualified service technician
check and replace.
No output voltage, no voltage
indication.
Reverse DC polarity.
Have qualified service technician
check and replace fuse, observe
correct polarity.
No output voltage, voltage indicator
in upper red zone.
High input voltage.
Make sure that inverter is
connected to 12 V battery. Check
regulation of charging system.
Low battery alarm on all the time,
voltage indicator below 11 V
Poor DC wiring, poor
battery condition.
Use proper cable and make solid
connections. Use new battery.
