Whirlpool 4322452 manual Electronic Ignition System, 123

ELECTRONIC IGNITION SYSTEM

OPERATION

The Electronic Ignition System performs the same function as the standing pilot ignition system. However, instead of using a standing pilot flame to ignite the main burners, a spark from a surface burner ignitor is used.

The electronic ignition system consists of the following components:

1.Ignitor Switches

2.Ignitor Spark Module

3.Surface Burner Ignitors (electrodes)

Ignitor Switches control the voltage to the ignitor spark module by opening and closing the circuit. The ignitor switches are mounted on the stem of each burner control valve, and are rotary-actuated. There are two types of switches used on Whirlpool ranges. One is for a 90˚ valve, shown in Figure 3-29, and the other is for a 220˚ valve. Each gas valve has its own ignitor switch. The ignitor switches are wired in parallel.

TO IGNITOR SPARK MODULE

MANIFOLD

IGNITOR SWITCH

STEM

GAS VALVE

123

OFF	LITE	90˚
ON		ON
LITE		OFF

Contacts

Ignitor SwitchContactsClosed

Open

Rotating

Collar Stop

LITE	ON
	OFF

Contacts

Open

Burner Off	Burner Off	Burner Off
Switch Contacts Open	Switch Contacts Closed	Switch Contacts Open
	Ignitors Sparking	Burner Lit

Figure 3-29

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