{"product_id":"carrier-ph2pnb024000ac-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch 395\/295 PSI — PH2PNB024000AC","description":"\u003ch1\u003eOEM Carrier High Pressure Switch 395\/295 PSI for Model PH2PNB024000AC (HK02ZA395 \/ HK02ZB044)\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier high pressure switch is the factory-specified refrigerant safety control for the \u003cstrong\u003eCarrier PH2PNB024000AC\u003c\/strong\u003e heat pump. Manufactured by Sensata on the PS80 platform and certified to CE\/EN60730-2-6 standards, it continuously monitors the high-side refrigerant pressure in your system. When pressure exceeds the factory cutout threshold, the switch opens to protect the compressor from catastrophic over-pressure damage. Common failure symptoms include nuisance high-pressure lockouts, the outdoor unit shutting off on warm days, or the system failing to restart after a fault code is cleared — all pointing to a faulty or out-of-spec pressurestat.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at 395 PSI | Closes at 295 PSI | 6(6)A @ 240 VAC | PMAX 41B | 1\/8\" NPT male thread | Sensata PS80-03-0018 platform | OEM part numbers: HK02ZA395 \u0026amp; HK02ZB044\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part — not an aftermarket clone. OEM pressurestat calibration is held to tight tolerances; generic copies can drift in cutout pressure, causing premature trips or, worse, failing to protect the compressor when pressure actually exceeds safe limits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Recover refrigerant before disconnecting the existing switch (required by EPA 608). Tools needed: refrigerant recovery machine, manifold gauges, adjustable wrench, Teflon tape for NPT threads, multimeter to confirm continuity. Always verify the system holds pressure after reinstallation before recharging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty \u0026amp; Shipping:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse when ordered before 3 PM local time. Free shipping on orders over $99.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for \u003cstrong\u003eCarrier model PH2PNB024000AC\u003c\/strong\u003e. Also replaces legacy Carrier part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, HK02ZA435, HK02ZA500, and HK02ZA501. Verify your unit's data plate and existing switch PSI rating before ordering. Our fitment team is available to confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641459462515,"sku":"CARRIE-PH2PNB024000AC-PRESSURE_SWITCH-HK02ZA395","price":118.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641459495283,"sku":"CARRIE-PH2PNB024000AC-PRESSURE_SWITCH-HK02ZA395-GEN","price":104.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_89164a5a-836f-453a-964a-331e7b1b46cc.jpg?v=1775033379","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph2pnb024000ac-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}