When set to the AUTO position

If your furnace fails to initiate the ignition sequence or the pilot won't stay lit

allowing for in-depth system analysis

a 3-blink code indicates a pressure switch failure

Common Questions What are the signs of a failing 17122000002587 board

Conbraco 10068005 Fitting 322027-701 When set to the AUTOThe Conbraco 10068005 is a heavy duty 3" x 1 2" copper reducer fitting designed for high flow commercial and industrial plumbing and HVACR systems. Engineered for sweat to sweat (C x C) connections, this fitting facilitates a significant diameter reduction while maintaining structural integrity under high pressure and temperature variances. Manufactured from high grade wrought copper, the 10068005 ensures optimal thermal conductivity and corrosion