Kenmore 153.331592, 153.331492 owner manual Piezoelectric Igniter System

compartment, making sure that the tip of the manifold tube engages in the slot of the bracket inside the combustion chamber (Figures 38 & 39).

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 manifold/ burner assembly door to the combustion chamber and tighten securely. Once the manifold/burner assembly door is tightened, visually inspect the door gasket between the manifold/burner assembly door and the combustion chamber for spaces or gaps that would prevent a seal. IMPORTANT: Do not operate the water heater if the door gasket does not create a seal between the manifold door and the combustion chamber.

6, During the following procedure, do not cross-thread or apply any thread sealant to any of the fittings listed below. First, reconnect the manifold tubing to the gas control valve/ thermostat.

NOTE: If a ferrule nut needs to be installed for the pilot tube, locate the one provided with your parts kit. Install it in the gas control valve/thermostat at the pilot location, hand tight only.

Next, insert the pilot tube into the ferrule nut until it bottoms out. NOTE: Hold the tube in this position. Tighten the ferrule nut with a wrench until the crimp connection seals to the pilot tube. Continue to tighten until the nut is tight in the gas control valve/thermostat.

7, Plug the thermopile plug into the gas control valve/ thermostat. Also, connect the two wire leads that go to the thermal switch if they had been removed.

8, Reconnect the igniter wire and tank sensor plugs.

9.Turn gas supply on and refer to the Lighting Instructions.

10.With the burner tit, check the gas control valve/thermostat supply line, two piece wire connector, manifold tube, and pilot tube connections for leaks. Check for leaks by brushing on an approved noncorrosive leak detection solution. Bubbles forming indicate a leak. Correct any leak found. IMPORTANT: All leaks must be fixed immediately.

11.Replace the outer door.

CLOSE-UP INSIDE VIEW OF

THE COMBUSTION CHAMBER.

__SLOT

TIPBRACKET

MANIFOLD TUBE

FIGURE 39.

Piezoelectric Igniter System

The piezoelectric igniter system consists of the igniter button, electrode, and wire. The pilot is ignited by an electric spark generated when the igniter button is pressed. The spark gap of 0.125 inch is set when the electrode is installed at the factory. (Figure 40). Use only factory authorized piezoelectric igniter parts for replacement.

ELECTRONIC CONTROL MODULE PILOT ASSEMBLY

PILOT

THERMOPILE

IGNITER

BUTTON

PILOT BRACKET

*NOTE: SPARK GAP DISTANCE MEASURED FROM ELECTRODE TIP TO PILOT.

FIGURE 40.

Testing the Igniter System

Turn off the gas to the water heater at the manual gas shut-off valve. Watch the electrode tip while activating the igniter. A visible spark should jump from the electrode. To avoid shock, do not touch the burner or any metal part on the pilot or pilot assembly. If no spark is visible, check the wire connections and make sure the electrode is not broken. Replace the igniter if defective. Dirt and rust on the pilot or electrode tip can prevent the igniter spark. Wipe clean with a damp cloth and dry completely. Rust can be removed from the electrode tip and metal surfaces by lightly sanding with an emery cloth or fine grit sandpaper.

FLAMEARRESTORBRACKET

TiP

FIGURE 38.

FVIR System Operational Checklist

1.Manifold gasket properly sealed.

2.Viewport not damaged or cracked.

3.Flame-arrestor free of debris and undamaged.

4.Two piece wire connector properly installed.

5.No leaks at pilot and manifold connection.

6.Manifold door screws securely tightened.

7.Depress the button on the thermal switch.

32