OEM Carrier Draft Pressure Switch 0.18 WC for Model PY3GNA060115NA — HK06WC061

This OEM Carrier draft pressure switch is the factory-specified replacement for the Carrier PY3GNA060115NA gas furnace. The pressure switch monitors negative pressure created by the inducer motor during the pre-purge cycle. If adequate draft is not proven, the switch prevents the ignition sequence from proceeding — protecting the system from unsafe operation. A failed pressure switch typically causes the furnace to lockout before ignition, often with a diagnostic fault code indicating a pressure switch error. You may also observe the inducer motor running continuously while the burners never light.

• Specs: 0.18" W.C. (inches water column) rating | Single-port, normally open | Replaces OEM part numbers HK06WC061 and HK06MB061 | Also cross-references Honeywell IS20224-5236
• OEM vs Generic: This is a genuine OEM Carrier part built to factory tolerances. Generic pressure switches may use imprecise setpoints, causing nuisance lockouts or — worse — failing to detect a true draft failure, which is a safety risk.
• Install Difficulty: 2/5 — Power off the furnace at the breaker before starting. Tools needed: 1/4" nut driver, flathead screwdriver, and a manometer to verify draft pressure after install. Photograph all tubing connections before disconnecting.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed for the Carrier PY3GNA060115NA gas furnace. Also fits select Bryant and Payne models sharing the HK06WC061 / HK06MB061 specification — verify your unit's data plate W.C. rating before ordering. Not sure if this part fits? Our HVAC parts specialists verify fitment before you order — contact us today.