{"product_id":"carrier-ph13nb04800gabaa-pressure-switch-1vlc9v","title":"OEM Carrier High \u0026 Low Pressure Switch Kit for PH13NB04800GABAA","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit for Model PH13NB04800GABAA\u003c\/h1\u003e\u003cp\u003eThis factory-matched OEM pressure switch set includes both the \u003cstrong\u003eHigh Pressure Switch (312926-252)\u003c\/strong\u003e and \u003cstrong\u003eLow Pressure Switch (312926-258)\u003c\/strong\u003e, engineered specifically for the \u003cstrong\u003eCarrier PH13NB04800GABAA\u003c\/strong\u003e packaged heat pump unit. Pressure switches are critical safety devices that monitor refrigerant-side pressure in both the high and low circuits. When either switch detects an out-of-range pressure condition — caused by refrigerant loss, blocked airflow, a failed metering device, or a locked-out compressor — it opens the control circuit and triggers a system lockout to prevent compressor damage. Common symptoms of failure include the unit short-cycling, displaying a fault code, or refusing to enter heating or cooling mode entirely.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eIncluded Parts:\u003c\/strong\u003e (1) 312926-252 High Pressure Switch | (1) 312926-258 Low Pressure Switch | Factory-calibrated trip points matched to R-410A refrigerant operating pressures for the PH13NB04800GABAA platform\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier pressure switches are calibrated to exact cut-in and cut-out pressure thresholds. Off-brand substitutes often carry wider tolerances, risking nuisance trips or — more dangerously — delayed lockout that can damage the compressor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Refrigerant system must be properly recovered before accessing high-side components. Tools required: manifold gauge set, refrigerant recovery unit, adjustable wrench, thread sealant tape, and a multimeter to confirm continuity after installation. Recommended for certified HVAC technicians.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both switches. Orders ship same business day from our warehouse when placed before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This kit is designed for the \u003cstrong\u003eCarrier PH13NB04800GABAA\u003c\/strong\u003e 4-ton packaged heat pump. Always verify OEM part numbers \u003cstrong\u003e312926-252\u003c\/strong\u003e and \u003cstrong\u003e312926-258\u003c\/strong\u003e against your unit's wiring diagram or data plate before ordering. Need fitment confirmed? Our HVAC parts specialists are available to verify compatibility before you purchase — no guesswork required. \u003cstrong\u003eOrder now and ship today.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641911071091,"sku":"CARRIE-PH13NB04800GABAA-PRESSURE_SWITCH-312926-252","price":47.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641911103859,"sku":"CARRIE-PH13NB04800GABAA-PRESSURE_SWITCH-312926-252-GEN","price":41.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-312926-252_8c1ee85b-a735-4cb4-9329-a73256c3d078.jpg?v=1775033029","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nb04800gabaa-pressure-switch-1vlc9v","provider":"National HVAC Parts","version":"1.0","type":"link"}