User Guide

5.4.3. O
2
Sensor Replacement Procedure
Follow the procedure below for O
2
sensors.
Step O
2
Sensor Replacement
1 Remove battery door and connector
tubing from both sensors.
2 Pull O
2
sensor from its socket.
3 Remove the O
2
cap.
4 Properly dispose of the old sensor.
5 Engage the nub on the new sensor
within the slot on the cap's side and
twist to secure the cap and sensor
together.
6 Install the cap and sensor unit by:
•
Aligning the ribs on the sides of
the sensor with the
corresponding shape in the base.
•
Inserting the pins into the
connectors in the base.
7 Reattach tubing.
5.4.4. CO Sensor Replacement Procedure
Follow the procedure below.
Step CO Sensor Replacement Procedure
1 Remove battery door
and the
connector tubing from the CO sensor.
2 Remove CO cap by twisting counter
clockwise.
3 Gently pull CO
sensor out of its
socket.
4 Properly dispose of the old CO sensor.
5 Plug new CO sensor into its socket.
6 Install the CO
cap by aligning it
toward the “open” position (12
o’clock) as shown in the diagram
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