Engineered as the direct successor to the discontinued 626468

the furnace will trigger a 2-flash or 3-flash error code on the control board

" If you notice uneven flame height across the 5 tubes

The 440V rating indicates the maximum voltage the insulation can handle

Built with a durable internal diaphragm

White-Rodgers 11D18-1 Control Els PW 17895 Engineered as the direct successorThe White Rodgers 11D18 1 Control is a rugged, well immersion hydronic control designed for precise temperature regulation in hot water heating systems. Engineered for high reliability performance, this immersion hot water control functions as a high limit, reverse action, or SPDT switching unit. It features a broad operating temperature range of 100F to 240F (Open High) and an adjustable differential of 5F to 45F, allowing technicians to fine tune