The Carrier 317289-301 Hot Surface Ignitor Wiring Harness is a critical field-service component engineered for precise electrical delivery to the furnace ignition system

repeated ignition failure codes on the boiler display

ensuring durable operation across air

Ensure the pilot tube is clear and the combustion chamber has adequate airflow for a stable flame

Avoid the risks of premature bearing wear or housing fatigue by utilizing the correct genuine Reznor part for your blower mounting application

Sporlan 900004P Valve 318423-701 The Carrier 317289-301 Hot SurfaceThe Sporlan 900004P is a high performance Crankcase Pressure Regulating Valve (CRO 4) engineered specifically to protect compressors from motor overload during high load periods. By maintaining a maximum predetermined suction pressure at the compressor inlet, this 0 50 PSI adjustable regulator ensures that vapor flow is properly throttled after a defrost cycle or an extended shutdown. Designed with a 1 2" ODF solder connection and a robust brass body,