American Water Heater 318935-003 Benutzerhandbuch

26

Pilot

Thermopile

Pilot/Thermopile
Assembly

Pilot Tube
(Ferrule Nut 
Not Shown)

Igniter 
Connector

Thermopile
Connectors

Figure 28

Pilot/Thermopile Assembly
(50K Models)

6.  Push the new pilot/thermopile assembly connectors 

through the opening in the burner door (See Figure 27). 
Do not to scrape or nick the wires during installation. 
IMPORTANT: DO NOT USE PILOT/THERMOPILES 
WITH FIBERGLASS SLEEVES. The replacement kit 
does not contain a fiberglass sleeve over the pilot/
thermopile wires.

7.  Attach the pilot assembly to the Burner Door Assembly.
8.  Position the new thermopile wires through the top 

opening of the manifold component block (Figure 27). 
Be sure that the igniter wire is positioned through the 
middle opening of the manifold component block.  
Position the pilot tube through the bottom opening of 
the manifold component block.

9.  See “Replacing the Burner Door Assembly” section. 

NOTE: Use the ferrule nut supplied with the new pilot/
thermopile assembly when connecting the pilot tube to 
the gas control valve/thermostat.

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” section instructions.

Figure 29
Flame-trap visual inspection 

Mirror

Flashlight

1.  Follow procedure outlined in “Removing the Burner 

Door Assembly”.

2.  Use a vacuum cleaner/shop vac to remove all loose 

debris in the combustion chamber (Figure 30A). Use 
compressed air to clear any dust or debris that may 
have accumulated in the flame-trap.

3.  Reassemble following the procedure under “Replacing 

the Burner Door Assembly”.

1.  Check the door gasket for damage or imbedded debris 

prior to installation.

2.  Inspect the viewport for damage and replace as required.
3.  Insert the burner assembly into the burner 

compartment, making sure that the burner assembly 
sits firmly against the burner bracket inside the 
combustion chamber (Figure 30B). 
IMPORTANT: Do not to scrape or nick the wires during 
installation. 

4.  Inspect the door gasket and make sure there is no 

fiberglass insulation between the gasket and the 
combustion chamber.

5.  Replace the two screws which secure the burner 

assembly to the combustion chamber and tighten 
securely. There should be no space between the 
gasket part of the burner door and combustion 
chamber. IMPORTANT: Do not operate the water heater