Nordyne 903108 Control Box R-410A While the extended ends are

While the extended ends are designed to dissipate heat

Technicians will appreciate the internal 3-amp automotive fuse that protects the 24V transformer from low-voltage shorts

OEM Compatibility: Specifically engineered for a direct fit in Raypak units

Industrial Durability: Robust construction minimizes setpoint drift and resists vibration-induced false trips

As a direct-fit HVAC replacement part

Nordyne 903108 Control Box R-410A While the extended ends areThe Nordyne 903108 Control Box is a critical integrated ignition control module designed for M1 series furnaces and select gas fired heating units. As a direct OEM replacement part, this Nordyne furnace control board manages the hot surface igniter (HSI), monitors flame rectification through the sensing circuit, and sequences the inducer motor and blower timings. This board is engineered to resolve common furnace ignition failures and intermittent