Comfort Control

Comfort Control Heating and Air Conditioning, Inc.

Fan Limit Switch

One of the most palpable indications that a heating system is working right is the temperature of the air that flows out of the vents. The system incorporates a fan limit switch that shuts off the fan if the temperature isn’t warm enough or if the temperature is too hot. Consequently, if you feel the fan blowing but the air coming out is cold, or if the room is already warm but the air keeps coming out, the fan limit switch may be malfunctioning.

Pledge: We check the fan limit switch and make sure it is operating correctly.