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Troubleshooting
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Common Problems
Buzz in Audio Equipment
Some inexpensive stereo systems may emit a buzzing noise from their
loudspeakers when operated from the XM 1800. This occurs because the
power supply in the audio system does not adequately filter the modified
sine wave produced by the inverter. The only solution is to use a sound
system that has a higher quality power supply.
Television Reception
When the XM 1800 is operating, it can interfere with television reception
on some channels. If interference occurs, try the following:
1. Make sure that the chassis ground stud on the XM 1800 is solidly
connected to the ground system of your vehicle or home.
2. Make sure that the television antenna provides an adequate (“snow-
free”) signal, and that you are using good quality cable between the
antenna and the television.
3. Keep the cables between the battery and the XM 1800 as short as
possible, and twist them together with two to three twists per foot.
(This minimizes radiated interference from the cables.)
4. Move the television as far away from the XM 1800 as possible.
5. Do not operate high power loads with the XM 1800 while the
television is on.
Understanding Fault Codes
This table explains the fault codes that appear on the three-digit display.
These codes alert you to the following conditions:
• DC input under-voltage
• DC input over-voltage
• AC overload conditions
• Short circuit
• Over-temperature.
Xantrex_PRO1800.book Page 2 Tuesday, April 24, 2007 11:33 AM