OEM Carrier Dual Pressure Switch Assembly for Model PG95SAS60080CBAA

This OEM dual pressure switch assembly is the factory-specified replacement for the Carrier PG95SAS60080CBAA 95% AFUE gas furnace. The pressure switch monitors negative pressure created by the inducer motor to confirm proper venting and combustion airflow before allowing the ignition sequence to proceed. When it fails — or when the associated gas pressure switch (HK02LB008) fails — the control board detects an open circuit and locks out the furnace, resulting in a no-heat call with a pressure switch fault code. Common symptoms include the inducer running continuously with no ignition, repeated lockout codes on the board, or the furnace short-cycling immediately after startup.

• OEM Part Numbers: HK06NB020 (Dual Pressure Switch Assembly) / HK02LB008 (Gas Pressure Switch) — factory-matched replacements for Carrier PG95SAS60080CBAA
• OEM vs Generic: OEM pressure switches are calibrated to the exact water column (W.C.) rating specified by Carrier's engineering team. Off-brand substitutes often carry wider tolerances, risking nuisance lockouts or — worse — allowing ignition under unsafe venting conditions.
• Install Difficulty: 3/5 — Requires disconnecting inducer hose(s), removing two mounting screws, and swapping wiring connectors. Always verify the inducer motor and condensate drain are functioning before condemning the switch. Tools needed: 1/4" nut driver, manometer (recommended for W.C. verification), multimeter.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.

Compatibility: Engineered specifically for the Carrier PG95SAS60080CBAA 95% AFUE packaged gas unit. This listing covers both the dual pressure switch assembly (HK06NB020 / superseded by HK06MB020) and the gas pressure switch (HK02LB008). Verify your model and existing W.C. rating on the switch body before ordering. Not sure if this fits? Our HVAC parts specialists confirm fitment before you buy — order with confidence and get back to comfort fast.