Maintenance Of Your Water Heater; Replacement Parts; Removing The Manifold/Burner Assembly; Removing The Burner From The Manifold/Burner Assembly - Kenmore 153.336930 Use & Care Manual

Replacement Parts
IMPORTANT: The following maintenance procedures are for the
FVIR System components and should be performed by a qualified
technician.
Replacement parts may be ordered from Sears Parts and Service
Centers or by calling 1-800-4-MY-HOME (1-800-469-4663). 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 the Parts Order List section for a list of available repair parts.
Removing the Manifold/Burner Assembly
1. Turn the gas control/temperature knob to the "OFF"
position (Figure 28).
2. Before performing any maintenance, it is important to turn off
the gas supply to the water heater at the manual gas shut-off
valve. This valve is typically located beside the water heater.
Note the position of the shut-off valve in the open/on position,
then proceed to turn it off (Figure 2).
With the unit shut-off, allow sufficient time for the water heater
to cool before performing any maintenance.
3,
GAS CONTROL/
TEMPERATURE KNOB
4,
5.
6,
IGNITER
WHITE
_i_ _ WIRE
IGNITER_"_i _ _ ',_ (RIGHT
LEAD n _ _ ,"' SIDE)
IJ PILOT
_, RED W RE
IGNITER_,i TUBE
WIRE ',", (LEFT SIDE)
MANIFOLD TUBE
FIGURE 28.
Remove the outer door.
Disconnectthe followingfrom the gas controlvalve/thermostat:
pilot tube (7/16" wrench), igniter wire (from the igniter lead
wire), and manifoldtube (3/4"wrench). See Figure28.
Disconnect the white and red wires from the gas control
valve/thermostat (Figure 28). Use needle nose pliers to
grip the connector(s). IMPORTANT: Grip the connector
carefully to prevent damage. Do not grip or pull the
wires themselves.
7. Grasp the manifold tube and push down slightly to free the
manifold tube and pilot tube.
8. Remove the screws (1/4" nut driver) securing the
manifold/burner assembly to the combustion chamber.
See Figure 29.
9. Carefully remove the manifold/burner assembly from the
combustion chamber. BE SURE NOT TO DAMAGE ANY
INTERNAL PARTS.
GAS CONTROL VALVE/THERMOSTAT THERMOPILE AND
\ SWITCH WIRE
GAS CONTROL/ _ _ CONNECTIONS
TEMPERATU RE KNOB _
,_!
PIEZO IGNITER BUTTO
PILOT TUBE ___1i ' ,i:I:!,:\_) _MANIFOLD TUBE
VIEWPORT _ _.,r_ i
i_JI _Pff_,_ THERMAL SW TCH
/- /.
MANIFOLD SCREW (2)
MANIFOLD COMPONENT BLOCK
FIGURE 29.
Removing the Burner from the Manifold/
Burner Assembly
Natural Gas (Low Nox) & L.P. Gas Burner
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 30).
IMPORTANT: DO NOT remove the orifice.
f_j PILOT ASSEMBLY
_ (BOTTOM VIEW)
FIGURE 30.
Replacing the Pilot/Thermopile Assembly
1. Remove the manifold door assembly as described in
"Removing the Manifold/Burner Assembly" section.
2. Remove the burner to access the pilot/thermopite assembly.
Remove and keep the screws securing the bumer to the
manifold (Figure 30). IMPORTANT: DO NOT remove the
orifice.
3. Remove the screw securing the pilot/thermopile assembly to
the pilot bracket and keep for reuse later (Figure 31 ).
4. Lift the retainer clip straight up from the back of the
manifold component block (using a flat-blade screwdriver),
then remove the manifold component block from the
manifold door (Figure 31). IMPORTANT: Be careful not to
bend or alter the position of the pilot tube. It will be used
as a bending template for the new pilot assembly. Note the
placement!order of the wires in the manifold component block.
5. Lift the pitot/thermopite assembly (including the igniter wire)
from the manifold assembly.
31