7
Some stereo systems and AM-FM radios have inadequate internal power supply filtering and “buzz” slightly
when powered by the inverter. Generally, the only solution is an audio product with a higher quality filter.
2) Television interference
The inverter is shielded to minimize its interference with TV signals. However, with weak TV signals
interference may be visible in the form of lines scrolling across the screen. The following should minimize or
eliminate the problem:
Increase the distance between the inverter and the TV, antenna and cables.
Adjust the orientation of the inverter television, antenna and cables.
Maximize TV signal strength by using a better antenna and use shielded antenna cable where possible.
c) Reference Chart
PROBLEM
CAUSE
SOLUTION
No power, no
indicator.
Battery is defective
Replace battery
Blown fuse
Check and replace fuse
Lose cable connections
Check the connection to the
battery. Tighten as required.
The red LED
indicator
illuminates.
AC products connected are
rated at more than the
Wattage load of the inverter;
overload shutdown has
occurred.
Reduce load.
AC products at less than the
Wattage load of the inverter,
but high starting surge has
caused overload shutdown.
Use a product with starting
surge power within the
inverter’s capability.
The voltage input from the
DC power source is too low
(alarm is sounding).
Charge the power source battery
Inverter is overheated due to
poor ventilation and has shut
down.
Unplug inverter from DC socket
and allow to be cooled for 15
minutes. Remove objects
covering unit. Move the inverter
to a cooler place. Reduce load if
continuous operation is
required. Restart.
