Always verify the part number before installation

Corrosion-Resistant Construction: Heavy-duty materials resist the corrosive effects of stagnant condensate and HVAC chemicals

While 40VA is standard

125-inch metal housings

Common Questions Does this assembly include the primary gasket

Heat Controller 17122000049085 Control Board 321042-401 Always verify the part numberThe Heat Controller 17122000049085 Control Board is a critical OEM replacement component designed for precision management of residential HVAC cycles. As a specialized HVAC control board replacement, this unit regulates the synchronized operation of the compressor, blower fan, and system sensors to ensure mechanical efficiency and stable thermostatic response. Engineered for high durability residential HVAC applications, the board features an advanced