OEM Carrier Gas Pressure Switch HK02LB008 for Model TFACCYCRLPELEV003A00

This OEM gas pressure switch (part number HK02LB008) is the factory-specified replacement for the Carrier TFACCYCRLPELEV003A00. The pressure switch is a critical safety component that monitors negative pressure created by the inducer draft motor. Once it confirms proper airflow and venting, it closes the circuit and allows the ignition sequence to proceed. When this switch fails or becomes stuck open, the furnace will lockout before ignition — often displaying a pressure switch fault code — leaving you without heat.

• Specs: Gas pressure switch | Factory W.C. (water column) rating matched to Carrier TFACCYCRLPELEV003A00 | Single-port or dual-port configuration as factory-specified | OEM-matched hose barb and bracket geometry for direct drop-in fit
• OEM vs Generic: This is a genuine OEM Carrier part manufactured to exact W.C. trip-point specifications. Aftermarket switches frequently carry ±10–15% W.C. tolerance variances, which can cause nuisance lockouts or, worse, fail to detect a true venting fault — a serious safety risk on gas appliances.
• Install difficulty: 2/5 — Shut off gas and power before beginning. Tools needed: 1/4" nut driver, flathead screwdriver, and a manometer (recommended to verify W.C. after install). Inspect the rubber hose for cracks and replace if brittle. Photograph all hose and wire connections before disconnecting.
• Warranty: 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.

Compatibility: Designed specifically for the Carrier model TFACCYCRLPELEV003A00. Always cross-reference the W.C. rating stamped on your existing switch with the HK02LB008 spec sheet before installation. Our fitment team is available to verify compatibility before you order — ensuring you get the right part the first time.