Lennox Hearth G8 - Manual (Page 84)

54-0198 84
TracVision G8 Owner’s Manual - Guide to Technical Information
4.2 Causes and Remedies for
Common Operational Issues
There are a number of common issues that can affect the
performance of the TracVision G8. The following sections address
these issues and potential solutions.
Power Disturbance, Blown Fuse, or Low Power
Power Disturbance
If the MCU detects a power disturbance, such as a
voltage spike, the system shuts itself down. If this
occurs, simply disconnect power from the MCU,
wait 20 seconds
, then restore power.
Blown Fuse
The antenna unit is equipped with a 5-amp,
125-volt fast-blow fuse on the PCB module. The
MCU is equipped with a 30-amp, 125-volt fast-
blow fuse on its rear panel. If either of these fuses
has blown or been broken, the system will not
work. To access the MCU fuse, simply unscrew
the fuse holder cap on the rear panel. For details
on accessing the antenna’s PCB module fuse, refer
to
“Replacing the PCB Module Fuse” on page 96 .
Low Power
If the data/power cable from the antenna unit to
the power source or MCU is more than 50 ft
(15 m) in length, the power level can decrease over
the course of the cable, resulting in a voltage level
at the antenna unit that is too low to power the
system. Refer to
“Connecting Vessel Power and the
IRD Ground Wire” on page 36 for details on
supplying adequate power to the antenna unit.
Figure 4-1
MCU Fuse
Fuse