Cleaning The Combustion Chamber And Flame-Arrestor; Replacing The Manifold/Burner Assembly - Kenmore 153.336941 Use & Care Manual

Cleaning the Combustion Chamber and
Flame-arrestor
1,
2.
Follow procedure outlined in "Removing the Manifold/
Burner Assembly".
Use a vacuum cleaner/shop vac to remove all loose debris
in the combustion chamber (Figure 34). Use compressed
air to clear any dust or debris that may have accumulated
in the flame-arrestor.
DOOR GASKET
COMBUSTION CHAMBER
FLAME ARRESTOR
BASE-RING
FIGURE 34.
3. Reassemble following the procedure under "Replacing the
Manifold/Burner Assembly."
Replacing the Manifold/Burner Assembly
Explosion Hazard
• Tighten both manifold door screws securely.
• Remove any fiberglass between gasket and
combustion chamber.
• Replace viewport if glass is missing or damaged.
• Replace manifold component block if missing or
removed.
• Replace door gasket if damaged.
• Failure to follow these instructions can result in
death, explosion, or fire.
4,
5,
6,
tube engages the slot of the bracket inside the combustion
chamber (Figure 35).
Inspect the door gasket and make sure there is no
fiberglass insulation between the gasket and the
combustion chamber (Figure 34).
Tighten the two screws that secure the manifold/burner
assembly to the combustion chamber. (Use a 1/4" nut
driver.) There should be no space between the gasket
part of the manifold door and combustion chamber
IMPORTANT: Do not operate the water heater if the door
gasket does not create a seal between the manifold door
and the combustion chamber.
Reconnect the manifold tube (3/4" wrench) and pilot tube
(7/16" wrench) to the gas control valve/thermostat (Figure 28).
Do not cross-thread or apply any thread sealant to the fittings.
IMPORTANT: If you were supplied with a new ferrule
nut in a parts kit, follow these steps to connect the
pilot tube:
1.) Install the ferrule nut into the gas valve at the pilot tube
location, hand tight only. 2.) Insert the pilot tube into the
ferrule nut until the tube bottoms out, then tighten the nut
with a 7/16" wrench until the crimp connection seals to the
pilot tube. 3.) Continue to tighten until the nut is tight in the
gas valve.
Connect the white and red wires to the gas control valve/
thermostat as shown in Figure 28. Also, ensure that the
red thermal switch wires are connected to the thermal
switch on the manifold door (Figure 33).
8. Reconnect the igniter wire (Figure 28).
9. Turn on the gas supply to the water heater at the manual gas
shut-off valve (Figure 2).
10. Follow the lighting instructions on the front of the water
heater. With the main burner lit, check for leaks at
the manifold and pilot connections by brushing on an
approved noncorrosive leak detection solution. If such
a solution is not available, use a mixture of hand dish
washing soap and water (one part soap to 15 parts
water) or childrens' soap bubble solution. Bubbles forming
indicate a leak. Correct any leak found.
11. Verify proper operation, then replace the outer door.
CLOSE-UP INSIDE VIEW OF
"_THE COMBUSTION CHAMBER.
IP BRACKET
MANIFOLD TUBE
FIGURE 35.
1,
2.
3.
Check the door gasket for damage or imbedded debris
prior to installation (Figure 34).
Inspect the viewport for damage and replace as required
(Figure 29).
Insert the new manifold/burner assembly into the burner
compartment, making sure that the tab of the manifold
33