OEM Carrier Pressure Switch HK06WC061 for Model PY3GEAA36090AA

This is the factory OEM replacement pressure switch for the Carrier PY3GEAA36090AA gas furnace. The pressure switch is a normally-open safety device that monitors negative pressure created by the inducer draft motor. Once the inducer proves adequate airflow, the switch closes and signals the control board to advance the ignition sequence. A failed pressure switch will prevent the furnace from ever reaching ignition — symptoms include a running inducer with no spark, repeated lockouts, or a fault code indicating an open pressure switch circuit.

• Specs: OEM Part Number HK06WC061 | Factory-calibrated W.C. (water column) trip point | Single-port or dual-port configuration per OEM design | 24V control circuit compatible
• OEM vs Generic: This is a genuine OEM Carrier pressure switch manufactured to exact factory W.C. specifications. Aftermarket substitutes frequently use wider trip-point tolerances, causing nuisance lockouts in cold weather or at altitude — OEM is always the recommended choice for pressure-sensitive safety switches.
• Install Difficulty: 2/5 — Straightforward swap with basic tools. Required: 1/4" nut driver, needle-nose pliers, and a manometer (recommended to verify W.C. reading post-install). Always disconnect power at the breaker and confirm the inducer hose is crack-free before condemning the switch.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our NationalHVACParts.com warehouse.

Compatibility: Designed and factory-specified for Carrier model PY3GEAA36090AA. Always cross-reference the W.C. rating printed on your existing switch and the OEM part number on your unit's wiring diagram before ordering. Our fitment team is available to confirm compatibility — reach out before you buy if you have any questions.