the EF33CW271 is the official replacement for EF33CB271

Key Benefits Universal Compatibility: Serves as a factory authorized replacement for multiple discontinued control board models

This water heater safety switch features a compact footprint for easy integration into the control string

a constant discharge usually indicates a fouled first check or a compromised relief valve diaphragm

By eliminating air gaps between the sensing bulb and the well wall

Reznor 205628 Motor 30067439-890 the EF33CW271 is the officialThe Reznor 205628 Motor is a heavy duty, multi voltage direct drive blower motor designed for high static pressure applications in industrial heating systems. Operating at 208 230 460V and 1075 RPM, this 3 4 HP HVAC motor provides the necessary torque to maintain consistent airflow across heat exchangers. As a direct Reznor 178178 replacement motor, it ensures seamless mechanical alignment and electrical compatibility with existing unit heater