Thermal Resistance: Utilizes industrial-grade materials capable of withstanding the high-temperature cycles common in venter motor assemblies

Field-Ready Design: Simplifies the retrofitting process for existing valves without requiring full system teardowns

This model is strictly for 120V applications

ensuring your HVAC system operates at peak thermodynamic efficiency

Nordyne 626421R Control Board Els PW 17895 Thermal Resistance: Utilizes industrial-grade materialsThe Nordyne 626421R Control Board is a critical OEM Hot Surface Ignition (HSI) module engineered to manage the automated firing sequence of furnace burners. This technician grade replacement board (Revision R) is the direct superseding part for legacy numbers 626421, 1018 204, and 1018 504. Designed for single stage Nordyne gas furnaces and packaged units, it provides precise 24VAC control and features on board diagnostics via LED flash codes to