Service and Parts | 6-9
Combustibles/Methane Detector Replacement
The Combustible detector will always face outward, and the Methane
detector will always face inward from the factory.
Combustibles Detector Replacement
Use Figure 8-4:
1. Disconnect the combustible detector (Black and Brown) wires on the
sensor board.
2. Loosen the two 4.0 mm hex screws that holds the combustible detector
in place and remove the detector from its housing. Save the screws from
the detector to use when installing the new combustibles detector.
3. Always use a new O-ring when detector is removed.
4. Install the new combustible detector in place, aligning the two screws
on the block. Be careful not to damage the detector element ends while
inserting the assembly. Tighten screws until face is flush with the block
and gasket is fully compressed.
5. Reconnect the detector leads to the sensor board.
Methane Detector Replacement
1. You must remove the block in order to access and replace the Methane
detector.
2. Disconnect the methane detector (Blue and White) wires on the sensor
board.
3. Loosen the two 4.0 mm hex screws that holds the methane detector in
place and remove the detector from its housing. Save the screws from
the detector to use when installing the new combustibles detector.
4. Always use a new O-ring when detector is removed.
5. Install the new methane detector in place, aligning the two screws on
the block. Be careful not to damage the detector element ends while insert-
ing the assembly. Tighten screws until face is flush with the block and
gasket is fully compressed.
6. Reinstall the block.
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