OEM Carrier Draft Inducer Pressure Switch 0.18" WC for Model PY4GEAB60130NA — HK06WC061

This OEM Carrier pressure switch is the factory-specified replacement for the Carrier PY4GEAB60130NA packaged unit. The pressure switch proves that the draft inducer motor has established proper negative pressure inside the heat exchanger before allowing ignition to proceed. When it fails or sticks, the control board cannot confirm safe venting conditions and will lock out the system — resulting in a no-heat call with no spark or ignition attempt. Common symptoms include a furnace that cycles the inducer but never advances to ignition, or a system that throws a pressure switch fault code.

• Specs: 0.18" WC (water column) set point | SPST (Single-Pole, Single-Throw) | Replaces OEM part HK06WC061 and current supersession HK06MB061 | Also cross-references Honeywell IS20224-5236
• OEM vs Generic: OEM pressure switches are calibrated to exact factory water-column tolerances (±0.01" WC). Generic aftermarket switches often drift outside spec, causing nuisance lockouts or — more dangerously — allowing ignition under unsafe draft conditions.
• Install difficulty: 2/5 — Power down the unit at the disconnect before starting. Tools needed: 1/4" nut driver, flathead screwdriver, and a digital manometer (recommended for post-install verification). Photograph the hose routing before disconnecting the pressure port tubes.
• Warranty: 1-year OEM manufacturer warranty. In-stock orders ship same business day from our warehouse.

Compatibility: Engineered for the Carrier PY4GEAB60130NA packaged unit. Also fits select Bryant and Payne models sharing the HK06WC061 / HK06MB061 specification — verify your unit's data plate and existing switch markings before ordering. Note: HK06WC061 has been superseded by HK06MB061; both are functionally identical and cross-compatible. Questions about fitment? Our HVAC parts specialists confirm compatibility before you order.