OEM Carrier Pressure Switch for Model PY4GEAA60090AA (HK06WC061)

This OEM pressure switch is the factory-specified replacement for the Carrier PY4GEAA60090AA packaged unit. The pressure switch monitors negative pressure created by the induced draft motor to confirm safe venting conditions before allowing ignition to proceed. When it fails, the control board cannot verify that the inducer is operating correctly, resulting in a no-heat condition, repeated lockout, or a fault code indicating a stuck-open or stuck-closed pressure switch. Replacing it with a genuine OEM part ensures the exact water column (W.C.) rating is maintained for safe and reliable operation.

• Specs: OEM Part Number HK06WC061 | Factory W.C. rating matched to PY4GEAA60090AA | Single-port diaphragm-type pressure switch | 24V control circuit compatible
• OEM vs Generic: This is a genuine Carrier OEM pressure switch. Generic aftermarket switches often carry wider W.C. tolerances, which can cause nuisance trips, failed ignition sequences, or — more critically — allow ignition under unsafe draft conditions. OEM is the safest, most reliable choice.
• Install difficulty: 3/5 — Requires access to the induced draft blower compartment. Tools needed: 1/4" and 5/16" nut drivers, needle-nose pliers, and a manometer or magnehelic gauge to verify W.C. after installation. Always shut off power and gas before beginning. Inspect the rubber hose connected to the switch for cracks or blockages before replacing the switch itself.
• Warranty: 1-year OEM factory warranty. In stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier PY4GEAA60090AA packaged gas/electric unit. Always confirm the W.C. rating on your existing switch's label matches this part before installation. Our technical team is available to verify fitment — contact us before ordering if you have any questions. Order today and get same-day shipping on all in-stock parts.