This OEM pressure switch features a durable diaphragm designed for the high-cycle demands of modern HVACR systems

the CNT2239 is specifically engineered by Trane to replace the Johnson Controls A19ACA-17 series

This 30-inch diameter fan blade features a precision-balanced 4-blade configuration with a 24-degree pitch

Always verify your specific model and serial number against the manufacturer's parts list to ensure the correct blower assembly size

What causes a brand-new switch to not close

Carrier 339855-701 Harness Assembly 321042-401 This OEM pressure switch featuresThe Carrier 339855 701 Harness Assembly is a critical OEM component designed for high efficiency integrated furnace control systems. This main wire harness facilitates seamless communication between the IFC control board, inducer motor, and safety limit switches. Field technicians frequently utilize this specific Carrier furnace wiring replacement to resolve intermittent connectivity issues or voltage drops caused by vibration induced terminal wear or