OEM Carrier Dual Pressure Switch Assembly HK06NB021 for Model PG96VAT60100CCAA

This OEM dual pressure switch assembly is the factory-specified replacement for the Carrier PG96VAT60100CCAA 96% AFUE gas furnace. The pressure switch monitors the negative pressure (vacuum) created by the inducer motor during each heating cycle. When the inducer reaches proper speed and draft, the switch closes to signal the control board that it is safe to proceed to ignition. If this switch fails — either stuck open or stuck closed — the furnace will lock out before ignition, leaving you with no heat. Common symptoms include a blinking fault code indicating a pressure switch fault, the inducer running continuously without ignition, or the furnace attempting to start and immediately shutting down.

• Part Type: Dual Pressure Switch Assembly | OEM Part Number: HK06NB021 (superseded by HK06MB021) | Includes both switches, each with one hose port and two wiring terminals
• OEM vs Generic: This is a factory-matched OEM assembly built to exact W.C. (water column) trip point specifications for the PG96VAT60100CCAA. Aftermarket switches can drift off-spec, causing nuisance lockouts or — more dangerously — allowing unsafe flue conditions to go undetected.
• Install Difficulty: 2/5 — Disconnect power and gas before starting. Tools needed: 1/4" nut driver, needle-nose pliers, and a manometer (recommended to verify hose integrity). Photograph all hose and wiring connections before removal. Inspect rubber hoses for cracks or blockages while the switch is out.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Direct OEM replacement for Carrier model PG96VAT60100CCAA 96% two-stage gas furnace. Also fits select Bryant and Payne models sharing this switch assembly. Verify your existing part number on the switch body or data plate before ordering. Our fitment team is available to confirm compatibility before you buy — ships today from stock.