OEM Carrier Draft Inducer Pressure Switch 0.18" WC for Model PY4GEAB48115NA

This is the factory-authorized OEM replacement pressure switch (part number HK06WC061, superseded by HK06MB061) for the Carrier PY4GEAB48115NA packaged unit. The pressure switch monitors negative air pressure created by the draft inducer motor, proving that safe combustion venting is established before allowing the gas valve to open. When it fails, the furnace or packaged unit will lock out on a pressure switch fault — typically before any ignition attempt — leaving you with no heat and a flashing diagnostic code.

• Specs: 0.18" WC (water column) set point | Normally open (N/O) | Single-port hose barb | Factory-matched Honeywell cross-reference IS20224-5236 | Direct OEM replacement for HK06WC061 / HK06MB061
• OEM vs Generic: OEM pressure switches are calibrated to the exact trip point required by your unit's inducer and heat exchanger design. Off-spec generic switches can trip too early (nuisance lockouts) or too late (unsafe venting condition), neither of which is acceptable.
• Install difficulty: 2/5 — Power off the unit at the disconnect before starting. Tools needed: 1/4" nut driver, needle-nose pliers, and a short length of 3/16" ID tubing if the original is cracked. Always inspect the rubber hose for blockage or splits — a clogged port is the #1 cause of pressure switch failure that isn't the switch itself.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PY4GEAB48115NA packaged gas/electric unit. Also cross-references Bryant and Payne models sharing the same inducer assembly. Verify the 0.18" WC rating on your existing switch before ordering. Have questions about fitment? Our HVAC parts specialists confirm compatibility before you buy — contact us today and get your system back online fast.