Lennox Hearth G8 - Manual (Page 101)

5.8 Replacing the Internal Sensor
1. Disconnect the sensor cable from the internal
sensor assembly.
2. Using a 3 ⁄
8
" nut driver/socket, remove the four
#10-32 self-locking nuts and flat washers securing
the internal sensor assembly to the sensor bracket.
Remove the old internal sensor.
3. Install the new internal sensor. Secure in place
with the nuts/washers that you removed in Step 2
and reconnect the sensor cable.
4. With Autocalibration set to “ON,” the sensor will
calibrate itself when you power up the antenna
and maneuver the vessel. The factory default
setting for Autocalibration is “ON” (see
“Selecting
Autocalibration” on page 78 ).
Maintenance
54-0198 103
Figure 5-16
Internal Sensor Assembly
(Side View)
Figure 5-17
Internal Sensor Assembly
(Top View)
Sensor Cable
Connector
Internal
Sensor
#10-32 Self-locking
Nuts (x 4)
Sensor Bracket