York S1-373-13300-604 Limit Switch Els PW 17895 Always check the flue termination

Always check the flue termination for obstructions during replacement

Once the system cools to 75°F

you can always upgrade to a higher voltage rating as long as the capacitance (MFD) matches and the oval physical dimensions fit your mounting bracket

Engineered specifically for Burnham residential boilers

York S1-373-13300-604 Limit Switch Els PW 17895 Always check the flue terminationFor service technicians managing 3 to 6 ton rooftop units, the York S1 373 13300 604 Limit Switch is a critical safety component designed for high limit protection. This HVAC auto reset limit switch is engineered to monitor primary heat exchanger temperatures, featuring a precise 105 165F temperature range. When discharge temperatures exceed the 165F threshold, the switch opens the control circuit to prevent thermal overloading, automatically