{"product_id":"carrier-pressure-switch-hb1ajx042000aaaa","title":"OEM Carrier Pressure Switch Replacement for Model HB1AJX042000AAAA","description":"\u003cdiv\u003e\n\u003ch1\u003eOEM Carrier Pressure Switch Replacement for Model HB1AJX042000AAAA\u003c\/h1\u003e\n\u003cp\u003eThis genuine OEM Carrier pressure switch safeguards your compressor by sensing refrigerant pressure and interrupting the circuit before unsafe high- or low-pressure conditions can cause damage. Factory-calibrated to the precise cut-in and cut-out setpoints required for the HB1AJX042000AAAA unit, it keeps the system operating strictly within safe limits and protects your most expensive component. A defective or stuck switch frequently causes nuisance lockouts, a unit that won't start, or intermittent trips during peak demand. Because it's matched to spec, there's no need to cross-reference pressure ratings or adapt fittings—it installs in place of the original. This is an easy repair for a technician or experienced DIYer: kill power at the disconnect, isolate the refrigerant side as required, remove the two control leads and the port connection, thread in the new switch, and reconnect. Most jobs take 20 to 30 minutes. Leak-check the fitting and verify switch function before restarting. In stock and ships same-day on orders before 3PM CST so cooling comes back online quickly.\u003c\/p\u003e\n\u003ch2\u003eCompatibility\u003c\/h2\u003e\n\u003cp\u003eThis part is compatible with Carrier model HB1AJX042000AAAA.\u003c\/p\u003e\n\u003ch2\u003eShipping\u003c\/h2\u003e\n\u003cp\u003eSame-day shipping before 3 PM CST. 30-day returns on uninstalled parts.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":62942658625907,"sku":"carrier-pressure-switch-hb1ajx042000aaaa","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-hb1ajx042000aaaa.jpg?v=1781470940","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pressure-switch-hb1ajx042000aaaa","provider":"National HVAC Parts","version":"1.0","type":"link"}