Patent ID: 7069923

Claim:
An apparatus of controlling a fan motor for a downdraft gas range, the apparatus comprising: an operation switch for selectively operating either one of a grill and a burner; a switch for detecting whether the grill exists or not; a fan relay for detecting whether the grill is operated or not; a fan motor coupled with a fan, for detecting operation of the grill and automatically operating at a selectable constant speed; a fan control switch for manually adjusting the speed of the fan motor regardless of whether the fan motor is in an ON state or an OFF state; wherein the fan control switch comprises an OFF mode in which the fan motor receives power provided from the fan relay at the same time the fan relay detects operation of the grill to thereby operate automatically at a constant speed, and manually adjustable LO, MID, and HI modes in which the fan motor receives power provided through the fan switch to thereby operate at respective LO, MID, and HI speeds.