Is the Watts 0121499 interchangeable with the 174A-1-100

Is this board a direct replacement for the old RLY30112

resulting in no heat production despite proper airflow

Direct OEM Fit: Engineered for seamless integration with specific Nordyne and Miller furnace cabinets

Can I use this for a single-stage furnace

Fenwal 05-129608-636 Cable 320074-702 Is the Watts 0121499 interchangeableThe Fenwal 05 129608 636 is a professional grade high voltage ignition cable engineered for reliable spark delivery in demanding HVACR and industrial burner applications. This 36 inch ignition lead features a high dielectric insulation jacket designed to withstand extreme thermal cycles and prevent voltage leakage or corona discharge, which are common causes of ignition failure in gas fired systems. Terminated with dual spade connectors, this assembly