OEM Carrier Pressure Switch w/ Bracket HK06WC090 for Model PG8DAA060135ADJA

This is the genuine OEM pressure switch with mounting bracket for the Carrier PG8DAA060135ADJA gas furnace. The pressure switch is a critical safety component that proves the inducer blower is creating adequate negative pressure before allowing the ignition sequence to proceed. When it fails or sticks open, the control board detects a fault and locks out the furnace — leaving you with no heat. Common symptoms include the inducer motor running but the furnace never advancing past the proving stage, a flashing fault code indicating a pressure switch error, or the furnace cycling the inducer repeatedly without lighting.

• Specs: –0.33" W.C. (inches water column) rated | Includes factory mounting bracket | SPST normally-open configuration | Direct OEM replacement for Carrier part HK06WC090
• OEM vs Generic: This OEM switch is factory-calibrated to the exact trip point required by your PG8DAA060135ADJA control board. Off-brand switches often carry wide W.C. tolerances that can cause nuisance lockouts or, worse, fail to detect a true inducer fault — a potential safety risk.
• Install difficulty: 2/5 — Power down and disconnect gas before servicing. Tools needed: 1/4" nut driver, needle-nose pliers, and a short length of replacement tubing (if original hose is cracked). Photograph existing hose routing and wire connections before removal. Snap bracket into original mounting location and reconnect hose and wires.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PG8DAA060135ADJA packaged gas furnace. Also replaces legacy part numbers 326750-751, HK06WC088, HK06WC086, HK660001, 310315-751, 310315-752, HK06WC076, HK06WC072, HK06WC073, and HK06WC074. Always verify the W.C. rating printed on your existing switch before ordering. Order today and our team will confirm fitment before your part ships.