{"product_id":"carrier-py1ppa036080acba-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 7\" Open\/22\" Close — PY1PPA036080ACBA","description":"\u003ch1\u003eOEM Carrier Pressure Switch (HK02ZB038) for Model PY1PPA036080ACBA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch for the \u003cstrong\u003eCarrier PY1PPA036080ACBA\u003c\/strong\u003e furnace. The pressure switch is a critical safety and proving component: it monitors the negative pressure (vacuum) created by the draft inducer motor and confirms safe combustion airflow before allowing the ignition sequence to proceed. When this switch fails — or gets stuck open — the furnace control board cannot verify inducer operation, resulting in a \u003cstrong\u003eno-heat condition, repeated lockout faults, or a furnace that runs the inducer but never advances to ignition\u003c\/strong\u003e. Replacing the switch with the correct OEM part (HK02ZB038) restores factory setpoint accuracy and eliminates nuisance lockouts caused by an out-of-tolerance aftermarket switch.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at \u003cstrong\u003e7\" W.C.\u003c\/strong\u003e | Closes at \u003cstrong\u003e22\" W.C.\u003c\/strong\u003e | \u003cstrong\u003e50\" lead wires\u003c\/strong\u003e | Single-port design | OEM Part Number: HK02ZB038 | Cross-reference: PS80-02-F0074\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM switches are calibrated to exact factory W.C. setpoints (±0.1\" tolerance). Generic alternatives often ship with wider tolerances that can cause nuisance trips or, worse, fail to detect a true inducer fault — a potential safety issue on any gas furnace.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Straightforward swap accessible from the furnace's vestibule panel. Tools needed: Phillips and flat-head screwdriver, needle-nose pliers. Turn off 120V power and gas supply before servicing. Inspect the rubber pressure port tubing for cracks or blockages while the switch is out — a clogged hose is a common root cause of premature switch failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed and factory-specified for the \u003cstrong\u003eCarrier PY1PPA036080ACBA\u003c\/strong\u003e furnace. Always verify the W.C. rating stamped on your existing switch before ordering. If your current switch reads a different W.C. setpoint, check your furnace's wiring diagram — some models use multiple switches at different ratings. Questions about fitment? Our HVAC parts team confirms compatibility before you order — call or chat today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640883564915,"sku":"CARRIE-PY1PPA036080ACBA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640883597683,"sku":"CARRIE-PY1PPA036080ACBA-PRESSURE_SWITCH-HK02ZB038-GEN","price":50.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZB038_3faa4ade-97c2-442d-a505-ad8a94b0554e.jpg?v=1775037098","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1ppa036080acba-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}