Whirlpool 4322452 manual Testing the GAS Control Valves

TESTING THE GAS CONTROL VALVES

The top burner gas valves control the gas flow to the top burners. The valve is a barrel and core, grease sealed, locking type valve (see Figure 6-12). Before the stem can be turned, it must be pushed in to unlock the valve. Gas flows from the manifold pipe into the rear of the valve and enters into the hollow core. The core has one large and two small holes in its side. When the stem of the valve is rotated, the core rotates with it. As the core is rotated, gas is allowed to flow from the large hole into the mixer elbow.

When the core is rotated 90-degrees, the large hole in the core matches the hole in the barrel allowing the maximum amount of gas to flow. When the core is rotated past 90˚, the gas flow is reduced.

Manifold Pipe

Valve Body

Barrel

Spring

Stem

To test a gas control valve:

1.Gas leak at the valve.

Push To Turn

Figure 6-12

a)Check to see if either the knob or the valve stem is rubbing the control panel. If so, align the manifold pipe before replacing the valve. If the alignment is good, replace the valve.

Note: Any type of side pressure on the valve stem will cause the valve to leak.

2.The valve stem is hard to turn, or cannot be turned.

a)Check to see if the control panel is preventing the stem from being pushed in. If so, adjust the manifold pipe. If not, replace the valve.

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