{"product_id":"carrier-py1pna036100adba-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS 7#OPN 50\" Leads — PY1PNA036100ADBA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 for Model PY1PNA036100ADBA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch for the \u003cstrong\u003eCarrier PY1PNA036100ADBA\u003c\/strong\u003e packaged unit. The pressure switch monitors the operation of the inducer motor by sensing negative air pressure through a rubber hose connected to the inducer housing. When the inducer achieves proper draft, the switch closes and signals the control board to proceed with ignition. A failed pressure switch causes the system to lock out before the ignition sequence ever begins — the inducer runs, but the furnace never lights, leaving you with no heat.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Closes at 22\" W.C. | Opens at 7\" W.C. | 50\" lead wire | OEM part number HK02ZB038 | Factory-matched actuation thresholds for reliable draft proving\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM switch, not an aftermarket substitute. OEM pressure switches are calibrated to exact W.C. thresholds; off-tolerance generic switches can cause nuisance lockouts or, worse, allow ignition under unsafe draft conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Standard hand tools required: 1\/4\" nut driver, needle-nose pliers. Disconnect power before servicing. Always inspect the pressure hose for cracks, moisture, or blockage before condemning the switch — a clogged hose is a common misdiagnosis.\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 as the direct OEM replacement for \u003cstrong\u003eCarrier model PY1PNA036100ADBA\u003c\/strong\u003e. Verify the W.C. rating on your unit's existing switch before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you buy — call or chat today. \u003cstrong\u003eIn stock — ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640987373939,"sku":"CARRIE-PY1PNA036100ADBA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640987439475,"sku":"CARRIE-PY1PNA036100ADBA-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_0b0b9e50-577c-4c5a-b83e-44075a53bfa8.jpg?v=1775037012","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pna036100adba-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}