OEM Carrier Pressure Switch with Bracket for Model GB3AAV024070ADJA (HK06WC090)

This OEM pressure switch with bracket is the factory-specified replacement for the Carrier GB3AAV024070ADJA gas furnace. The pressure switch is a critical safety device that monitors negative pressure created by the inducer draft motor to confirm proper venting before allowing the ignition sequence to proceed. When this switch fails or sticks open, the furnace will lock out before ignition — often displaying a fault code — leaving your home without heat. Common symptoms include a furnace that attempts to start, runs the inducer briefly, then shuts down repeatedly without ever lighting.

• Specs: Includes factory-matched pressure switch and mounting bracket | Rated to correct W.C. (water column) pressure specification for model GB3AAV024070ADJA | Single-port design | OEM part number HK06WC090
• OEM vs Generic: This OEM unit is calibrated to the exact trip point required by the Carrier GB3AAV024070ADJA. Generic switches often carry wider W.C. tolerances that can cause nuisance lockouts or, more dangerously, allow the furnace to run under unsafe venting conditions.
• Install difficulty: 2/5 — Shut off power and gas before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, and a manometer (optional, for verification). Photograph all hose and wiring connections before disconnecting. The included bracket simplifies direct swap installation.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier GB3AAV024070ADJA gas furnace. Always verify the W.C. rating and port configuration on your existing switch before ordering — these specifications are printed on the switch body. Our parts specialists are available to confirm fitment before you buy. Order today and receive same-day shipping on all in-stock OEM components.