Whirlpool WP74008940 Infinite Switch for Range

The Whirlpool WP74008940 is an infinite switch designed for use in brand ranges, functioning as a burner control switch. This component is responsible for regulating the power supplied to the cooktop's surface elements. Unlike standard on/off switches, the infinite switch features a variable resistance setup. When the knob is turned, the electrical resistance in the circuit alters, allowing for precise adjustments to the heat output. This capability useful for tasks such as maintaining low simmer or quickly boiling liquids. A malfunctioning infinite switch can lead to issues such as burners that are unresponsive, inconsistent heat levels, or difficulty in managing the temperature.