OEM Carrier Pressure Switch HK02ZB038 for Model PY1PEA060100AEBA

This is the genuine OEM replacement pressure switch for the Carrier PY1PEA060100AEBA packaged unit. The pressure switch proves that the draft inducer motor is running and producing adequate airflow before allowing ignition to proceed. If the switch fails — or if tubing cracks or the inducer weakens — the control board will lock out before ignition, leaving you with a furnace that attempts to start and immediately shuts down, or one that never fires at all. Fault codes pointing to inducer or pressure-proving failures are the primary diagnostic indicator for this switch.

• Specs: 22" W.C. closing set point | 7" W.C. opening set point | 50" lead wires | OEM part number HK02ZB038 | Factory-calibrated for exact pressure proving at Carrier's specified tolerances
• OEM vs Generic: OEM pressure switches are factory-calibrated to tight set-point tolerances. Off-brand substitutes often carry ±15–20% variance on the trip point, which can cause nuisance lockouts or — more dangerously — allow ignition under inadequate draft conditions.
• Install difficulty: 2/5 — Shut off power at the disconnect before servicing. Tools needed: 1/4" nut driver, needle-nose pliers, and a manometer if you want to verify draft before reinstalling. Inspect the rubber hose and port for cracks or blockage while the switch is out.
• Warranty: 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier PY1PEA060100AEBA packaged gas/electric unit. Verify your unit's data plate and compare the existing switch's set-point markings before ordering. Our fitment team is available to confirm compatibility — reach out before you buy if you have any questions. Order now and ship today.