{"product_id":"carrier-ph13pa04800gaaaa-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS 7#OPN 50\" Leads — PH13PA04800GAAAA","description":"\u003ch1\u003eOEM Carrier Low Pressure Switch HK02ZB038 for Model PH13PA04800GAAAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch for the \u003cstrong\u003eCarrier PH13PA04800GAAAA\u003c\/strong\u003e packaged heat pump unit. The pressure switch is a normally-open safety device that monitors the refrigerant or airflow pressure differential to prove the system is operating within safe parameters before allowing the next stage of operation. When it fails — sticking open, failing to close at the correct threshold, or developing a cracked diaphragm — the control board never receives the confirmation signal it needs, resulting in a hard lockout, a \"pressure switch stuck open\" fault code, or a system that simply won't advance past the first stage of its start sequence.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Closes at 22 PSI | Opens at 7 PSI | 50\" lead wire | Factory-matched trip points | OEM part number HK02ZB038\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine Carrier factory part with precision-calibrated trip points (22# close \/ 7# open). Aftermarket pressure switches frequently ship with out-of-tolerance set points, causing nuisance lockouts or — worse — unsafe operation. OEM is always the correct call for safety-critical components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Turn off power at the disconnect before servicing. Tools needed: 1\/4\" nut driver, flat-blade screwdriver, needle-nose pliers. Photograph the two-wire connector orientation before unplugging. Snap the new switch into the bracket, reconnect the leads, and restore power. Confirm no fault codes on the board.\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 when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as the direct OEM replacement for \u003cstrong\u003eCarrier model PH13PA04800GAAAA\u003c\/strong\u003e. Always verify the OEM part number printed on your existing switch before ordering — pressure switch trip points are model-specific and cannot be safely substituted with a different rating. Our team is available to verify fitment before you order. \u003cstrong\u003eOrder now and your part ships today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641846026611,"sku":"CARRIE-PH13PA04800GAAAA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641846059379,"sku":"CARRIE-PH13PA04800GAAAA-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_ae257cd7-b85f-4e83-acd8-e8b5220f6f9e.jpg?v=1775036975","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13pa04800gaaaa-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}