Why does my furnace limit switch keep tripping

Operating as a direct replacement for 1086679

Its robust construction resists the mechanical stresses of high-duty cycle applications

It operates on a 120Vac coil and is rated for a 20 Amp inductive current

Cleveland Controls DFS-221-199 Pressure Switch Why does my furnace limitThe Cleveland Controls DFS 221 199 is a professional grade air pressure sensing switch engineered for high accuracy airflow proving in duct heaters, ovens, and gas fired combustion systems. This fixed setpoint pressure switch is factory calibrated to actuate on a pressure rise of 0. 05" WC ( 0. 02" WC), providing a reliable safety interlock for HVAC and energy management applications. Its compact, non adjustable design is particularly effective for