diagnose the combustion air issue immediately

the 61-26018-71 includes an internal check valve

OEM Compatibility: A direct manufacturer replacement for York

Compatible as a direct replacement for the 174A-3/4-100 series

Trane SEN1577 Sensor 322838-754 diagnose the combustion air issueThe Trane SEN1577 Sensor is a high performance programmable zone sensor designed for precise climate management in commercial and light industrial applications. Engineered for seamless integration with Trane Voyager and Precedent units, this OEM HVAC sensor provides 7 day scheduling capabilities and supports both automatic and manual changeover modes. With a high resolution digital display, technicians can quickly verify real time data including room