OEM Carrier Pressure Switch HK06WC061 for Model CP48P548P509011CP

This is the factory OEM pressure switch (part number HK06WC061) for the Carrier CP48P548P509011CP packaged unit. The pressure switch is a critical safety component that monitors negative pressure created by the induced draft blower, confirming proper venting before allowing ignition to proceed. When this switch fails — or when its hose, port, or diaphragm degrades — the control board never receives the "inducer proven" signal, resulting in a no-heat lockout condition. Symptoms typically include the inducer motor running continuously with no ignition attempt, or a fault code indicating a pressure switch error on the board.

• Specs: OEM-matched water column (W.C.) trip point | Single-port diaphragm-style switch | 24V control circuit compatible | Factory-calibrated for correct inducer pressure range on the CP48P548P509011CP
• OEM vs Generic: This is a genuine Carrier OEM part, factory-calibrated to the exact W.C. rating required by the CP48P548P509011CP. Aftermarket pressure switches frequently carry wider trip-point tolerances, which can cause nuisance lockouts, failed ignition sequences, or — in worst cases — unsafe venting conditions.
• Install Difficulty: 2/5 — Disconnect power before servicing. Tools needed: 1/4" nut driver, flathead screwdriver, and a digital manometer (recommended to verify switch operation post-install). Inspect the rubber hose and port for cracks or blockages before installing the new switch, as a clogged port is a common root cause of switch failure.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed and factory-specified for the Carrier CP48P548P509011CP packaged unit. Always verify the W.C. rating stamped on your existing switch matches HK06WC061 before installation. If you're unsure of fitment, our HVAC parts specialists can confirm compatibility before you order — same-day shipping available on all in-stock OEM Carrier parts.