Kenmore 57240 Bedienungsanleitung PDF herunterladen (Seite 30)

MAINTENANCE OF YOUR WATER HEATER

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 1-844-553-6667. 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.

External Inspection & Cleaning of the

Base-Ring Filter

1. At least annually, check the base-ring filter (Figure 39) for

any dust or debris that may have accumulated on the filter

screen. NOTE: If the water heater is located in an area that

is subjected to lint and dirt, it may be necessary to check

the base-ring filter more frequently.

2. Follow the Lighting Instructions to turn off the water heater

and allow it to cool for 10 minutes before attempting to clean

the base-ring filter.

3. Use a vacuum cleaner with a hose attachment to remove

any dust or debris that may have accumulated on the filter.

NOTE: If unable to inspect or clean the base-ring filter, follow

the “Cleaning the Combustion Chamber and Flame-arrestor”

instructions.

4. After the base-ring filter has been cleaned, follow the

Lighting Instructions to return the water heater to service.

Removing the Manifold/Burner Assembly

1. Turn the gas control/temperature knob to the “OFF” position.

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 11).

3. With the unit shut-off allow sufficient time for the water heater to

cool before performing any maintenance.

Igniter

Wire

Red Wire

(Left Side)

Pilot

Tube

Manifold Tube

Igniter

Button

Igniter

Lead

Wire

White

Wire

(Right

Side)

VAC

FIGURE 32.

4. Remove the outer door.

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. (Figure 32).

NOTE: L.P. Gas systems use reverse (left-hand) threads on

the manifold tube.

MANIFOLD SCREW (2)

MANIFOLD COMPONENT BLOCK

MANIFOLD DOOR

THERMAL SWITCH

PILOT TUBE

MANIFOLD TUBE

VIEWPORT

THERMOPILE AND

SWITCH WIRE

CONNECTIONS

PIEZO IGNITER BUTTON

GAS CONTROL VALVE/THERMOSTAT

GAS CONTROL/

TEMPERATURE KNOB

VAC

OUTER DOOR

NOT SHOWN

FIGURE 33.

6. Use needle nose pliers to disconnect the white (-) thermopile

wire from the gas control valve/thermostat (Figure 32). Then

disconnect both red thermal switch wires from the thermal

switch on the old manifold door. (Figure 33).

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

door to the combustion chamber. Carefully remove the

manifold door assembly from the combustion chamber. BE

SURE NOT TO DAMAGE ANY INTERNAL PARTS.

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.

IMPORTANT: DO NOT remove the orifice.

2. Check the burner to see if it is dirty or clogged. The burner

may be cleaned with soap and hot water (Figure 34).

BURNER

(BOTTOM VIEW)

SCREWS

PILOT ASSEMBLY

(BOTTOM VIEW)

FIGURE 34.

Replacing the Pilot/Thermopile Assembly

1. Follow the “Removing the Burner/Manifold Assembly”

instructions on the following pages to remove the manifold

door assembly.

2. Natural Gas/LP Models - Remove the burner to access the

pilot/thermopile assembly. Remove and keep the screws

securing the burner to the manifold (Figure 34).

3. Remove the screw securing the pilot/thermopile assembly to

the pilot bracket and keep for reuse later.

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 35). IMPORTANT: Be careful not to

bend or alter the position of the pilot tube, it will be used

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