When troubleshooting a furnace blower that won't shut off or a unit that is short cycling

As a critical component in Sensus 243-8-2 and 243-12 series valve bodies

014 orifice for accurate gas flow and stable pilot ignition

the AFS-298-112 features a durable plated housing and a silicone diaphragm compatible with air and combustion byproducts

instantly interrupting the gas valve circuit if airflow obstructions or blower failures cause internal temperatures to exceed safe operational parameters

Johnson Controls A99BC-300 Temperature Sensor Els PW 17895 When troubleshooting a furnace blowerThe Johnson Controls A99BC 300 Temperature Sensor is a high precision PTC Silicon Sensor engineered for demanding HVACR environments. Utilizing a Positive Temperature Coefficient element, this passive sensor provides a reference resistance of 1,035 ohms at 77? F (25? C), ensuring exceptional accuracy of 0. 9? F across a broad range. This specific model features a 9 3 4 foot high temperature silicon cable, making it suitable for applications where