OEM Carrier Pressure Switch with Bracket (HK06WC090) for Model GA2AAD048091ACJA

This is the factory OEM replacement pressure switch with mounting bracket for the Carrier GA2AAD048091ACJA gas furnace. The pressure switch 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 control board cannot verify inducer operation and will lock out the furnace — resulting in a no-heat call with no spark or ignition attempt. Common symptoms include a furnace that starts the inducer but never advances to ignition, or a fault code indicating a pressure switch error.

• Specs: OEM Part Number HK06WC090 | Includes factory mounting bracket | W.C. (water column) rating factory-matched to GA2AAD048091ACJA inducer specifications | Single-port design | 24V control circuit compatible
• OEM vs Generic: This is the genuine Carrier factory part, engineered to the exact W.C. trip point for this model. Aftermarket pressure switches frequently use imprecise trip thresholds, causing nuisance lockouts or — more dangerously — allowing the furnace to fire under improper venting conditions.
• Install difficulty: 3/5 — Turn off power and gas before servicing. Tools needed: flat-head and Phillips screwdrivers, needle-nose pliers, multimeter (to verify switch continuity). Inspect rubber hose port for cracks or blockages before installing the new switch. Photograph all hose routing and wiring connections prior to removal.
• Warranty: 1-year OEM factory warranty against defects. In-stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier GA2AAD048091ACJA gas furnace. Always cross-reference the OEM part number HK06WC090 and your unit's data plate W.C. rating before ordering to ensure correct fitment. Our parts specialists are available to verify compatibility before you buy — order with confidence and get back to heat fast.