The York S1-025-31927-000 Auto Limit Switch is a high-precision OEM furnace safety control designed to monitor and regulate internal heat exchanger temperatures

This SPST break-on-rise control is built with a negative biased power element diaphragm

verify the 5 MFD run capacitor and check the condenser coil for debris that may be causing excessive head pressure

as restricted airflow often causes the limit to trip

Versatile Mounting: Included faceplates and a steel mounting plate allow for easy installation directly to walls or standard electrical boxes

Carrier 51HK400163 Knob 321042-401 The York S1-025-31927-000 Auto LimitCarrier 51HK400163 Knob Notes Item is Non Cancelable Non Returnable