Abstract: A air circulator for an oven includes a housing having inlet and outlet walls with openings in each wall for permitting air to pass through the housing. The air circulator further includes a fan assembly within the housing having a rotatable fan element and a plurality of fan blades attached radially about the fan element for drawing air through the housing upon rotation of the fan element. A spring motor assembly is positioned within the housing and coupled with the fan assembly for rotating the fan element. The air circulator further includes a heat sensitive switch formed of a combination of metals which contracts upon an increase in the ambient air temperature of the oven for activating the spring motor.