OEM Carrier Furnace Pressure Switch 0.18" WC for Model PY3GEAA36060AA

This OEM Carrier draft inducer pressure switch (part HK06WC061, superseded by HK06MB061) is the factory-specified replacement for the Carrier PY3GEAA36060AA packaged unit. The pressure switch proves that the induced draft blower has created adequate negative pressure before allowing the gas valve to open. When it fails or sticks, the furnace control board interprets it as a blocked flue or failed inducer — resulting in a no-heat lockout condition before ignition is ever attempted.

• Specs: 0.18" W.C. (water column) setpoint | Single-pole, normally open | Honeywell OEM switch body (IS20224-5236) | Fits Bryant, Carrier, and Payne family units
• OEM vs Generic: OEM pressure switches are calibrated to exact W.C. setpoints within tight tolerances. Generic aftermarket switches frequently drift outside spec, causing nuisance lockouts or — worse — allowing ignition under unsafe draft conditions.
• Install difficulty: 2/5 — Shut off power and gas before servicing. Tools needed: 1/4" nut driver, flathead screwdriver, and a manometer or magnehelic gauge for post-install verification. Remove the single rubber hose from the port, swap the switch, and reconnect. Always verify draft pressure at startup.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Fits Carrier PY3GEAA36060AA packaged units. Note: OEM part HK06WC061 has been superseded by HK06MB061 — both part numbers are fulfilled with the current production equivalent. Also compatible with select Bryant and Payne models sharing the same 0.18" W.C. specification. Verify your unit's pressure switch rating on the data plate or wiring diagram before ordering. Questions about fitment? Our HVAC parts team confirms compatibility before your order ships.