Replacement Parts; Removing The Burner Door Assembly - American Water Heater Ultra Low NOx MODELS Installation Instructions And Use & Care Manual

Replacement Parts

Replacement parts may be ordered through your plumber
or the local distributor. Parts will be shipped at prevailing
prices and billed accordingly. When ordering replacement
parts, always have the following information ready:
1. model, serial, and product number
2. type of gas
3. item number
4. parts description
See pages 30-31 for a list of available repair parts.

Removing the Burner Door Assembly

1. Turn off the gas to the water heater at the manual
shut-off valve (Figure 3).
2. Turn the gas control/temperature knob to the "OFF"
position (Figure 18).
3. Remove the outer door.
4. Remove the four screws (1/4" nut driver) securing the
burner door assembly to
the combustion chamber
(Figure 23).
5. Disconnect the pilot tube
(7/16" wrench), the igniter
wire from the igniter lead
wire, and manifold tube
(3/4" wrench) at the gas
control valve/thermostat.
Also disconnect the red (+)
and white (-) thermopile
wires from the gas control
valve/thermostat. See
Figures 22 & 23.
6. Grasp the manifold tube
and push down slightly,
carefully remove the burner door assembly from the
burner compartment.
NOTE: Be sure not to damage internal parts.
Figure 23
Burner Door Assembly
Removal
Gas Control Valve/Thermostat
Piezo Igniter Button
Manifold Tube
Viewport
Pilot Tube
Outer Door
Not Shown
Manifold Component Block
24
Figure 22
Gas Control Valve/
Thermostat
VAC
Igniter
Button
Igniter
Lead
Wire
Pilot
Red
Tube
Wire
Igniter Manifold (Left
Wire
Tube Side)
Thermopile
Wire
Connections
VAC
Burner Door
Burner Door Screws (4)
Natural Gas Burner (Ultra Low Nox)
Check the burner to see if it is dirty or clogged. The burner
may be cleaned with soft paint brush (Figure 24). 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.
Figure24
NaturalGas(LowNox)
Burner Door Assembly
Burner
White
Wire
(Right
Side)
Pilot Assembly
Use brush on this surface.