OEM Carrier Pressure Switch with Bracket for Model GA2AAD036070ABJA (HK06WC090)

This is the factory-specified OEM pressure switch with mounting bracket for the Carrier GA2AAD036070ABJA packaged gas unit. The pressure switch monitors negative pressure created by the inducer draft motor to confirm safe venting conditions before allowing the ignition sequence to proceed. When this switch fails or becomes stuck open, the control board cannot verify inducer operation and the furnace will lock out entirely — producing a no-heat call with no spark or gas valve activity. A failed pressure switch is one of the most common causes of furnace lockout codes in colder months.

• Specs: OEM Part# HK06WC090 | Includes factory mounting bracket | Rated water column (W.C.) matched to Carrier GA2AAD036070ABJA inducer specifications | Single-port or dual-port configuration as factory-designed
• OEM vs Generic: OEM pressure switches are calibrated to the exact W.C. rating required by your unit's inducer. Generic or universal switches frequently use approximate W.C. ratings, causing nuisance lockouts or — more dangerously — allowing the furnace to fire under unsafe venting conditions. Always use OEM on pressure switches.
• Install difficulty: 3/5 — Disconnect power and gas before beginning. Tools needed: 1/4" nut driver, flathead screwdriver, manometer (recommended to verify W.C. after install). Inspect the rubber hose connecting the switch to the inducer for cracks or blockages before replacing the switch, as a clogged hose is a common root cause of pressure switch failure.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed and factory-matched for the Carrier GA2AAD036070ABJA packaged gas unit. Verify OEM part number HK06WC090 against your unit's data plate or existing switch label before ordering. Not sure if this is the right part? Our HVAC parts specialists confirm fitment before you buy — no guesswork, no returns.