OEM Carrier Pressure Switch with Bracket (HK06WC090) for Model GB3AAV048095ACJA

This OEM pressure switch with integrated mounting bracket is the factory-specified replacement for the Carrier GB3AAV048095ACJA gas furnace. The pressure switch monitors the negative pressure produced by the inducer draft motor to confirm safe venting conditions before allowing the ignition sequence to proceed. When this switch fails or sticks open, the furnace control board will not advance past the inducer stage — resulting in a no-heat lockout, a flashing fault code, or a furnace that runs the inducer continuously without ever attempting ignition.

• Specs: OEM-matched W.C. (water column) rating factory-calibrated for the GB3AAV048095ACJA | Includes factory mounting bracket for direct drop-in installation | Single-port hose connection | 24V control circuit compatible
• OEM vs Generic: OEM pressure switches are precision-set to the exact W.C. trip point required by your furnace's inducer and heat exchanger configuration. Generic aftermarket switches frequently carry wider tolerances that can cause nuisance lockouts or, more dangerously, fail to detect a blocked flue — making OEM the only recommended choice for this safety-critical component.
• Install difficulty: 2/5 — Shut off gas and power before beginning. Tools needed: flathead screwdriver, needle-nose pliers, and a camera phone to photograph hose routing and wiring connections prior to removal. The included bracket eliminates the need for drilling or fabrication.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day when ordered before cutoff.

Compatibility: Designed specifically for the Carrier GB3AAV048095ACJA gas furnace. Always cross-reference OEM part number HK06WC090 and verify your unit's W.C. rating on the data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment — order with confidence and get your heat back on today.