Whirlpool Comprehensive Guide to Water Heater Maintenance and Replacement Parts

Replacement Parts

IMPORTANT: The following maintenance procedures are for the Flame Lock™ Safety System components and should be performed by a qualified person.

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 Repair Parts Section 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.Depress the dial stop and turn the gas control knob on the combination gas control

valve/thermostat clockwise to

Figure 22

Igniter

the “OFF” position (Figure 19).

Button

Dial Stop

3. Remove the outer door.

4.

Remove the two screws

U N I T R O L

securing the manifold door

WARNING

READ ALL INSTRUCTIONS

assembly to the combustion

BEFORE

LIGHTING

chamber (Figure 23).

WA

T

T I

R

U

M

HO

A

O

5.

Disconnect the thermocouple

R

C

N

O

T

W

H

S

Y

B

H

A

R

R

E

E

T

OT TE

E

U

R

R E

R

EA

V

T

I

I NCR

IN

S

SK

O

H

LD

AW

F SCA

OITA

(right-hand thread), pilot

N

Right-Hand

tube, the igniter wire from

Thread

the igniter button, the two

Igniter

connectors attached to

Wire

the thermal switch, and

Thermocouple

Pilot

manifold tube at the gas

Tube

Thermal

Manifold Tube

control valve/thermostat.

Switch Wires

(Figures 22 & 23.) NOTE:

L.P. Gas systems use reverse (left-hand) threads on the manifold tube.

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. NOTE: Be sure not to damage internal parts.

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 24A).

Figure 24A		Manifold Door	Thermal Switch
Natural Gas (Low Nox)		Assembly
Burner Assembly
		Two Piece Wire	Igniter Wire
Burner		Connector
			Pilot
			Tube
			Manifold
		Manifold	Tube
		Door
		Gasket	Thermocouple
		Pilot Bracket	Viewport
Thermocouple			Pilot
Retainer Clip	Pilot Assembly		Tube
		Thermocouple
		Manifold Door
		Assembly
Burner		Pilot Assembly

Manifold

Tube

Screws

L.P. Gas Burner

1.Separate the pilot bracket from the L.P. burner by removing screw.

2.Loosen set screw located on top of the L.P. burner near the manifold door. Carefully, pull the burner away from the manifold door assembly.

3.Check the burner to see if it is dirty or clogged. The burner may be cleaned with soap and hot water (Figure 24B).

Figure 24B	Manifold Door	Manifold Door
L.P. Gas Burner		Assembly
	Gasket
Assembly

Figure 23

Burner Assembly

Removal

Gas Valve /

Thermostat

Manifold

Tube

Thermocouple

Viewport

Piezo

Igniter

Button

Pilot Tube

WARNING

I

O

Thermal Switch

Two Piece Wire	Thermal Switch
Connector	Igniter Wire
Burner
	Pilot
Screws
	Tube
	Manifold
	Tube

Thermocouple

Viewport

Pilot Assembly

Thermocouple	Pilot Bracket
Retainer Clip

Manifold		Manifold
	Two Piece Wire
Screw (2)	Connector	Door

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