{"product_id":"carrier-ph1rea048000aawb-pressure-switch-jrhhrg","title":"OEM Carrier Low Pressure Switch 7 PSI Open 22 PSI Close — PH1REA048000","description":"\u003ch1\u003eOEM Carrier Low Pressure Switch HK02ZB044 for Model PH1REA048000AAWB\u003c\/h1\u003e\u003cp\u003eThis OEM low pressure switch (part number \u003cstrong\u003eHK02ZB044\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH1REA048000AAWB\u003c\/strong\u003e packaged heat unit. The pressure switch proves that the inducer motor has established adequate negative pressure (draft) before allowing the control board to advance to the ignition sequence. A failed pressure switch prevents this signal from reaching the board, resulting in a no-heat condition, repeated ignition lockout, or a fault code indicating an open pressure switch circuit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at 7 PSI | Closes at 22 PSI | 50\" wire leads | 24V control circuit | Manufactured in Mexico to OEM factory specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM part, engineered to exact factory tolerances. Generic aftermarket switches frequently carry wider pressure tolerances, which can cause nuisance lockouts or, worse, allow ignition under unsafe draft conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Shut off power and gas supply before beginning. Tools needed: 5\/16\" nut driver, flathead screwdriver, manometer (recommended to verify switch actuation pressure post-install). Carefully label and photograph all wiring and hose connections before disconnecting. The pressure port hose must seat fully to prevent false pressure readings.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePH1REA048000AAWB\u003c\/strong\u003e packaged unit. Always verify your unit's data plate and existing switch specifications (open\/close PSI and lead length) before ordering to ensure correct fitment. Have a question? Our HVAC parts specialists verify fitment before you buy — reach out today and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641559208307,"sku":"CARRIE-PH1REA048000AAWB-PRESSURE_SWITCH-HK02ZB044","price":95.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641559241075,"sku":"CARRIE-PH1REA048000AAWB-PRESSURE_SWITCH-HK02ZB044-GEN","price":83.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZB044_52c2af6c-c4b6-4033-80ea-58c52050b753.jpg?v=1775036377","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph1rea048000aawb-pressure-switch-jrhhrg","provider":"National HVAC Parts","version":"1.0","type":"link"}