OEM Carrier Pressure Switch HK06WC061 for Model PY3GNA048090NA

This is the factory OEM replacement pressure switch (part number HK06WC061) for the Carrier PY3GNA048090NA packaged gas/electric unit. The pressure switch is a critical safety component that monitors negative pressure (inches of water column) inside the flue system to confirm that the draft inducer motor is operating correctly before the ignition sequence is allowed to proceed. When the pressure switch fails, the control board receives no confirmation signal and locks out the system — resulting in a no-heat condition, often accompanied by a fault code indicating an open or stuck pressure switch.

• Specs: OEM-specified W.C. (inches water column) rating | Factory-matched hose barb fitting | SPST normally-open configuration | Designed for Carrier PY3GNA048090NA operating pressures
• OEM vs Generic: This is a genuine Carrier OEM part (HK06WC061), manufactured to exact factory pressure setpoints. Generic aftermarket switches frequently carry wide W.C. tolerances that cause nuisance lockouts or, worse, allow ignition under unsafe draft conditions.
• Install Difficulty: 3/5 — Turn off power and gas before servicing. Tools needed: 1/4" nut driver, flat-head screwdriver, multimeter (continuity test), and a manometer to verify W.C. setpoint after installation. Always inspect the rubber hose for cracks before reuse.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PY3GNA048090NA packaged gas/electric unit. Always verify the W.C. rating on your existing switch and cross-reference part number HK06WC061 on your unit's wiring diagram before ordering. Have questions about fitment? Our HVAC parts specialists are available to confirm compatibility before you buy — same-day shipping on all in-stock orders.