OEM Carrier Pressure Switch with Bracket (HK06WC090) for Model PG8UAA036111ABJA

This is the genuine OEM replacement pressure switch for the Carrier PG8UAA036111ABJA packaged gas furnace. The pressure switch monitors the negative pressure generated by the inducer motor to confirm proper draft before allowing ignition to proceed. When it fails — or when the hose, port, or diaphragm degrades — the control board cannot verify inducer operation, and the furnace will lock out before the burners ever light. Common symptoms include a no-heat call with the inducer running but the igniter never energizing, or a steady pressure switch fault code on the board.

• Specs: -0.33 W.C. (inches water column) rating | Includes factory mounting bracket | Single-port diaphragm-style switch | Direct OEM replacement for Carrier part number HK06WC090
• OEM vs Generic: This is a factory-matched OEM part with the exact trip point your control board expects. Generic switches often drift off the rated W.C. setpoint, causing nuisance lockouts or, worse, allowing ignition under unsafe draft conditions.
• Install difficulty: 2/5 — Disconnect power before servicing. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers. Inspect the rubber hose from the inducer housing to the switch port for cracks or blockages before condemning the switch. Photograph all hose routing before removal.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PG8UAA036111ABJA packaged gas furnace. Also supersedes legacy Carrier pressure switch part numbers including HK06WC088, HK06WC086, HK06WC076, HK06WC072, HK06WC073, HK06WC074, HK660001, 326750-751, 310315-751, and 310315-752. Always verify the W.C. rating on your existing switch or equipment data plate before ordering. Our fitment team is available to confirm compatibility before you buy.