{"product_id":"carrier-ph10ja048000abaa-pressure-switch-jria74","title":"OEM Carrier High Pressure Switch Kit for PH10JA048000ABAA — HK02ZA395","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit for Model PH10JA048000ABAA — HK02ZA395 \u0026amp; HK02ZB038\u003c\/h1\u003e\u003cp\u003eThis OEM pressure switch kit includes both the \u003cstrong\u003ehigh pressure switch (HK02ZA395)\u003c\/strong\u003e and the \u003cstrong\u003elow pressure switch (HK02ZB038)\u003c\/strong\u003e, the factory-specified refrigerant safety switches for the \u003cstrong\u003eCarrier PH10JA048000ABAA\u003c\/strong\u003e heat pump system. These switches continuously monitor refrigerant circuit pressure and protect the compressor from catastrophic damage caused by abnormal high- or low-side pressure conditions. When either switch fails or trips and won't reset, the system will lock out on a fault code, resulting in a complete loss of cooling or heating — even if the compressor and refrigerant charge are otherwise fine.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — HK02ZA395 (High Pressure Switch):\u003c\/strong\u003e Opens at 395 PSI | Closes at 295 PSI | 1\/8\" NPT thread | 240 VAC | Sensata PS80-03-0018 platform | SPST normally closed\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — HK02ZB038 (Low Pressure Switch):\u003c\/strong\u003e Opens at 7 PSI | Closes at 22 PSI | 50\" lead wires | Sensata PS80 platform | Designed for R-410A refrigerant circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier pressure switches are calibrated to exact trip-point tolerances for the PH10JA048000ABAA refrigerant circuit. Generic aftermarket switches frequently carry wider pressure tolerances, risking nuisance trips or — worse — delayed cutout that damages the compressor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Refrigerant circuit work requires an EPA 608 certified technician. Tools needed: manifold gauge set, 1\/4\" flare wrenches, multimeter for continuity verification. Always recover refrigerant before disconnecting the high-side switch. Low-side switch (HK02ZB038) is accessible via spade connectors; photograph wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both switches. Orders placed by 3 PM local time ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e This kit is engineered specifically for the \u003cstrong\u003eCarrier PH10JA048000ABAA\u003c\/strong\u003e heat pump. HK02ZA395 also replaces legacy part numbers 312926-217, 71267D1, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, and HK02ZA435. Verify refrigerant type and system model on your data plate before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork required.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641987223923,"sku":"CARRIE-PH10JA048000ABAA-PRESSURE_SWITCH-HK02ZA395","price":65.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641987256691,"sku":"CARRIE-PH10JA048000ABAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":57.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_43bb5abf-d009-47b4-81c8-cc71b2c34cdc.jpg?v=1775033650","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja048000abaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}