Replacement Parts - American Water Heater Gas Water Heater Installation Instructions And Use & Care Manual

Replacement Parts

The following maintenance procedures are for the
Flame Guard ® Safety System components and should
be performed by a qualified service technician.
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 27-28 for a list of available repair parts.
Removing the Manifold Assembly
1. Turn off the gas to the water heater at the manual
shut-off valve (Figure 3).
2. Turn the gas control knob on the combination gas
control valve/thermostat
clockwise to the "OFF"
position (Figure 19).
3. Remove the outer door.
4. Remove the two screws
securing the manifold
door assembly to the
combustion chamber
(Figure 22).
5. Disconnect the
thermocouple (right-hand
thread), pilot tube, the
igniter wire from the igniter
button, the two connectors
attached to the thermal
switch, and manifold tube
at the thermostat. (Figures 22 & 23.)
6. Grasp the manifold tube and push down slightly to free
the manifold, pilot tube, and thermocouple.
7. Carefully remove the manifold assembly from the
burner compartment. Be sure not to damage internal
parts.
Figure 23
Burner Assembly
Removal
Gas Valve /
Thermostat
Manifold
Tube
Thermocouple
Viewport
Manifold
Screw (2)
Figure 22
Igniter
Button
U N I T R O L
WARNING
READ ALL INSTRUCTIONS
BEFORE LIGHTING
T
N
S
Right-Hand
Thread
Thermocouple
Thermal
Manifold Tube
Switch Wires
Piezo
Igniter
Button
Pilot Tube
U N I T R O L
WARNING
READ ALL INSTRUCTIONS
BEFORE LIGHTING
T
N
S
Thermal Switch
Manifold
Two Piece Wire
Door
Connector
Removing the Burner from the
Manifold Assembly
Natural Gas Burner (Low Nox)
1. Take off the burner by removing the two (2) screws
located underneath the burner.
2. Check the burner to see if it is dirty or clogged. The
burner may be cleaned with soap and hot water (Figure
24).
Figure 24
Natural Gas (Low Nox)
Burner Assembly
Burner
Thermocouple
Retainer Clip
Pilot Assembly
Burner
Igniter
Wire
Pilot
Tube
Manifold Door
Assembly
Two Piece Wire
Connector
Manifold
Door
Gasket
Pilot Bracket
Thermocouple
Manifold Door
Assembly
Pilot Assembly
Screws
Thermal Switch
Igniter Wire
Pilot
Tube
Manifold
Tube
Thermocouple
Viewport
Pilot
Tube
Manifold
Tube
21