York S1-7710-3281 Limit Switch align the stainless steel teeth

align the stainless steel teeth with a straight section of the coil

Ensure all mating surfaces on the cast iron sections are thoroughly cleaned of old residue or oxidation

this kit is specifically sized for 1/2" and 3/4" units

This component creates a specific pressure drop within a pneumatic control loop

preventing water ingress along the motor shaft that can lead to premature bearing failure or winding damage

York S1-7710-3281 Limit Switch align the stainless steel teethThe York S1 7710 3281 is a critical 105 85F fan limit switch engineered for precise thermal management within residential and light commercial air handlers and furnaces. As a genuine OEM York part, this bimetal sensor ensures the blower fan activates once the heat exchanger reaches the 105F cut in point and deactivates after cooling to the 85F cut out. This specific temperature differential is vital for preventing short cycling and optimizing latent