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3000 Watt AC Inverter by Wagan Tech
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charging when the vessel or vehicle engine is operating. In the case of a vessel, make sure
that shore power is used to recharge the batteries whenever possible.
Operating Issues
Television and Audio Suggestions.
Although all inverters are shielded and filtered to minimize signal interference, some
interference with your television picture may be unavoidable, especially with weak signals.
However, here are some suggestions that may improve reception.
First, make sure that the television antenna produces a clear signal under normal
operating conditions (i.e. at home plugged into a standard 110/120VAC wall
outlet). Also, ensure that the antenna cable is properly shielded and of good
quality.
Change the positions of the inverter, antenna cables and television power cord.
Isolate the television, its power cord and antenna cables from the 12 volt power
source by running an extension cord from the inverter to the television set.
Coil the television power cord or install a clamp-on ferrite choke (available from
electronic parts suppliers).
Note: Some inexpensive audio systems may have a slight “buzzing” sound when operated
with the inverter. This is caused by insufficient filtering in the audio system. The only solution
to this problem is to get a sound system with a higher quality power supply.
Troubleshooting
PROBLEM: Low or no output voltage
Reason Solution
Poor contact with battery terminals Clean terminals thoroughly
Using incorrect type of voltmeter to test
output voltage
Use true RMS reading meter
PROBLEM: Inverter Shutdown
Reason Solution
Battery voltage below 10 volts Recharge or replace battery
Equipment being operated draws too much
power
Use a higher capacity inverter or do not use
this equipment
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