Kenmore 153.33062, 153.330652 Removing the Burner Door Assembly, Ultra Low NOx Natural Gas Burner

Removing the Burner Door Assembly

1, Turn off the gas to the water heater at the manual gas shut-off valve (Figure 3).

2.Turn the gas control knob on the combination gas control valve/thermostat clockwise to the "OFF" position (Figure 1). NOTE: Depress the dial stop on Robertshaw valve before

turning the gas control knob. See Lighting Instructions on the water heater.

3, Remove the outer door.

4.Remove the two screws securing the burner door assembly to the combustion chamber. (Figure 24).

GAS VALVE/

THERMOSTAT

Ultra Low NOx Natural Gas Burner

Check the burner to see if it is dirty or clogged. The burner may be cleaned with soft paint brush (Figure 26). Do not use a wire brush or any tool that may damage the burner screen. Important: Do not use the burner if the burner screen is damaged. NOTE: Damage may be rips or holes in the burner screen. Discoloration is normal.

f

PILOT ASSEMBLY /

BURNER

USE BRUSH ON THIS SURFACE

DOOR TWO PIECE WIRE

SCREW(2) CONNECTOR

FIGURE 24.

5.Disconnect the thermocouple (right-hand thread), pilot tube, the igniter wire from the igniter button, and manifold tube at the thermostat.

(Figure 25).

6.Grasp the manifold tube and push down slightly to free the manifold tube, pilot tube, and thermocouple.

7.Carefully remove the burner door assembly from the combustion chamber. Be sure not to damage internal parts.

ROBERTSHAW GAS VALVE

PILOT TUBE

MANIFOLD TUBE "_

FIGURE 25.

FIGURE 26.

Replacing the Pilot Assembly

1,	Follow the instructions in "Removing the Burner Door
	Assembly" section to remove the assembly.

2.Remove the retainer clip securing the two piece wire connector to the burner door assembly. (Note the orientation of the retainer clip). Insert the tip of a large flat head screwdriver between the clip and the top of the two piece wire connector. Carefully rotate the screwdriver to raise the clip. It may be necessary to remove the connector one side at a time. (See Figure 27.)

3,	Locate where the thermocouple connects to the rear of the
	pilot assembly, and pull the thermocoupte tip from the rear of
	the pilot assembly.
4,	Remove the nut securing the pilot assembly to the burner
	and keep it for reuse later.

5.Use a 1/2" open end wrench, to loosen the nut securing the pilot tube to the pilot. To prevent any bending use a pair of pliers to steady the pilot bracket.

6,	Remove the old pilot assembly (including the igniter wire)
	from the burner door assembly.

7.Insert the pilot tube into the new pilot assembly. Important: The new pilot assembly comes with an orifice. This orifice must be installed when replacing the pilot assembly.

IMPORTANT: Do not operate this water heater without the orifice in place.

8,	Use a 1/2" open end	wrench, to tighten the nut securing the
	pilot tube to the pilot. To prevent any bending use a pair of
	pliers to steady the pilot bracket.
g,	Use the nut removed	in a previous step to secure the new
	pilot assembly to the	burner.

10.Insert the igniter wire through the burner door and reconnect the thermocoupte to the pilot assembly. See "Replacing the Thermocoupte" section.

11.Reinstall the two piece wire connector. NOTE: The pilot tube must be at the top followed by the igniter wire then the thermocoupte.

12.Follow the instructions in "Replacing the Burner Door Assembly" section to reinstall the assembly.

21