While primarily a York/Johnson Controls part

ensuring consistent flow rates and leak-proof performance

replacing a worn high limit safety switch with this factory-authorized part is essential for restoring reliable furnace performance and meeting local mechanical codes

If the sensor detects a loss of flame or carbon buildup

Sensus 143-62-021-22 Spring While primarily a York/Johnson ControlsThe Sensus 143 62 021 22 Spring is a critical OEM replacement part engineered for the Sensus 143 80 series domestic service regulators. This black white color coded spring provides a precise outlet pressure range of 0. 5 to 2 PSIG, making it essential for natural gas and propane applications requiring intermediate pressure control in residential or small commercial settings. As a genuine Sensus gas division component, it ensures the internal orifice