Replacing the Thermocouple

Important: Use only a factory authorized Flame Guard® Safety System thermocouple for replacement.

1.Remove the manifold assembly as directed previously.

2.Remove the retainer clip from the back of the two piece wire connector and remove the two piece wire connector from the manifold door (Figure 24).

3.Pull the thermocouple from the pilot assembly (Figures 28A and 28B).

Be careful not to bend or alter the position of the pilot assembly components.

Notice: The thermocouple contains a thermal fuse, which is used as a safety device.

4.Push the new thermocouple through the holes in the pilot bracket. Insert the thermocouple tube into the holes provided in the pilot assembly until it clicks into place.

5.Position the new thermocouple through the larger opening of the two piece wire connector (Figure 24). Note: Thermocouple contains a thermal fuse. Do not bend in the location shown below (Figure 25). Be sure igniter wire is positioned through the small opening of the two piece wire connector.

6.See “Replacing Manifold Assembly” Page 23.

Figure 24	Other fittings
Two Piece Wire	not shown
Connector	for clarity

Assembly

Igniter

Wire

Retainer Clip

Manifold

Door

Thermocouple

Two Piece

Wire Connector

Figure 25

Thermocouple

Assembly

Notice:

Thermocouple

must not be bent

in this location.

External Inspection & Cleaning of the Flame-trap

Although not likely to occur, if debris collects on the Flame-trap, use a vacuum, compressed air, or a soft bristle brush to remove it. Note: If unable to inspect or clean the flame trap from underneath, follow the “Cleaning the Combustion Chamber and Flame-trap” instructions on page 23.

Figure 26

Flame-trap visual inspection

Flashlight

Mirror