OEM Carrier Draft Pressure Switch 0.18 WC for Model PY3GNAA60115NA (HK06WC061)

This OEM Carrier draft inducer pressure switch is the factory-specified replacement for the Carrier PY3GNAA60115NA packaged unit. The pressure switch monitors negative pressure produced by the inducer motor to confirm safe venting conditions before allowing ignition to proceed. When it fails or sticks open, the furnace or packaged unit will lock out before the igniter ever fires — leaving you with a no-heat call and often a blinking fault code indicating a pressure switch fault. The OEM part number HK06WC061 has been superseded by HK06MB061; both are fully compatible and this listing ships the current production version.

• Specs: 0.18" W.C. (inches water column) rated setpoint | Draft-proving / inducer pressure switch | Single-port design | Replaces HK06WC061, HK06MB061, and Honeywell IS20224-5236
• OEM vs Generic: OEM switches are calibrated to the exact 0.18" W.C. setpoint required by this unit. Aftermarket switches often carry wider tolerances, risking nuisance lockouts in cold weather or — worse — failing to detect true venting failures.
• Install difficulty: 2/5 — Shut off power and gas before servicing. Locate the switch on or near the inducer housing. Disconnect the pressure tubing and two wire terminals, swap the switch, and reconnect. Tools needed: flathead screwdriver, needle-nose pliers. Always check tubing for cracks or blockages before condemning the switch.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Engineered for the Carrier PY3GNAA60115NA packaged unit. Also fits select Carrier, Bryant, and Payne furnaces, packaged units, heat pumps, and air handlers specifying the 0.18" W.C. pressure switch. Verify your existing switch's W.C. rating on the data label before ordering — W.C. rating must match exactly. Questions about fitment? Our HVAC parts specialists confirm compatibility before you order.