Nordyne 903423 Combustion Chamber 319825-402 the DC heater relay is

the DC heater relay is defective and requires replacement

Common signs include the outdoor fan not spinning

this Goodman replacement part restores optimal system pressure and energy efficiency

Verified Positioning: Built-in end switches allow for seamless integration with blower fans or status indicators

this kit is specifically calibrated for R-22 refrigerant pressures and thermostatic properties

Nordyne 903423 Combustion Chamber 319825-402 the DC heater relay isThe Nordyne 903423 Combustion Chamber is a critical OEM furnace replacement part engineered specifically for Nordyne mobile home furnaces, including high efficiency M1, M5, and CMF2 gas furnace series. As a veteran technician knows, maintaining the structural integrity of the combustion chamber assembly is vital for safe heat exchange and preventing cracked heat exchanger symptoms. This unit is constructed from high grade, vacuum cast ceramic fiber