OEM Carrier Gas Pressure Switch HK02LB008 for Model TCACCYCRLPELEV005A00

This OEM gas pressure switch (part number HK02LB008) is the factory-specified replacement for the Carrier TCACCYCRLPELEV005A00. The pressure switch is a critical safety component in the furnace's ignition sequence — it monitors negative pressure created by the inducer draft motor to confirm that proper venting is established before allowing the gas valve to open. When this switch fails or sticks, the control board cannot verify safe draft conditions, resulting in a no-heat lockout, a flashing fault code, or the system shutting down immediately before ignition begins.

• Specs: Factory-rated W.C. (water column) set point | Single-port design | 1/4" Molex or spade terminal connection | OEM-matched pressure tolerance for Carrier TCACCYCRLPELEV005A00
• OEM vs Generic: This OEM pressure switch is calibrated to the exact W.C. rating required by the factory. Generic alternatives often carry wider pressure tolerances that can cause nuisance lockouts or, worse, allow ignition under unsafe draft conditions — always choose OEM for pressure switches.
• Install Difficulty: 2/5 — Shut off power and gas before servicing. Tools needed: flat-head screwdriver, needle-nose pliers, and a manometer if verifying draft pressure. Disconnect the rubber hose port and electrical terminals, swap the switch, and re-confirm proper ignition sequence on restart.
• Warranty: 1-year OEM factory warranty. In-stock units ship same business day from our warehouse.

Compatibility: Engineered as a direct OEM replacement for Carrier model TCACCYCRLPELEV005A00. Always cross-reference the W.C. rating printed on your existing switch with the part number before ordering to ensure an exact match. Our fitment team is available to verify compatibility before you purchase — order with confidence and get back up and running fast.