{"product_id":"carrier-py1ppa030040acba-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS 7#OPN 50\" Leads — PY1PPA030040ACBA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 for Model PY1PPA030040ACBA\u003c\/h1\u003e\u003cp\u003eThis OEM pressure switch (part number \u003cstrong\u003eHK02ZB038\u003c\/strong\u003e) is the factory-specified replacement for \u003cstrong\u003eCarrier model PY1PPA030040ACBA\u003c\/strong\u003e packaged heating and cooling systems. The pressure switch monitors the negative pressure created by the inducer motor to confirm safe draft before allowing the ignition sequence to proceed. When this switch fails or sticks open, the control board cannot prove inducer operation and the furnace locks out — resulting in a no-heat condition before a single ignition attempt is ever made.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Close Set Point: -0.22\" W.C. (22#) | Open Set Point: -0.07\" W.C. (7#) | Lead Length: 50\" | Factory-matched pressure tolerance for reliable draft proving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier part manufactured to exact W.C. set-point tolerances. Aftermarket switches frequently drift out of calibration, causing nuisance lockouts or — more dangerously — failing to detect a true blocked-flue condition.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off power and gas before servicing. Tools needed: 1\/4\" nut driver, needle-nose pliers, and a digital manometer (recommended to verify inducer static pressure after replacement). Disconnect the hose port and two wire leads, swap the switch, and restore power. Always check error codes before and after replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty against defects. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for \u003cstrong\u003eCarrier PY1PPA030040ACBA\u003c\/strong\u003e packaged units. Verify your unit's data plate and existing switch W.C. rating before ordering to ensure a direct fit. Our technical team is available to confirm fitment — order with confidence and get back up and running fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640899424627,"sku":"CARRIE-PY1PPA030040ACBA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640899457395,"sku":"CARRIE-PY1PPA030040ACBA-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_fbdb069c-25eb-4913-81b4-87f83dfe52be.jpg?v=1775037027","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1ppa030040acba-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}