If your furnace blower runs constantly while the burners remain off

Proper orifice sizing is essential for maintaining flame stability and preventing incomplete combustion or soot buildup within the heat exchanger

Maxitrol uses color-coding or plating (like this one) to distinguish pressure ranges

this component ensures the exact volumetric flow of gas required for clean combustion and optimal thermal output

Is the 10728340 switch compatible with my specific furnace model

Nordyne 626337R Fan Control If your furnace blower runsThe Nordyne 626337R Fan Control is a critical OEM replacement part designed for gas furnaces requiring a fixed F115 30F fan switch. Engineered for Nordyne gas furnaces and compatible private label air handlers, this temperature actuated control regulates blower activation to optimize thermal transfer and prevent heat exchanger overheating. The F115 30F limit switch features a fixed fan on temperature of 115? F and a fan off threshold of 30? F,