{"product_id":"carrier-ph10ja04800gabaa-pressure-switch-jria74","title":"OEM Carrier High \u0026 Low Pressure Switch Kit for PH10JA04800GABAA","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit — HK02ZA395 \u0026amp; HK02ZB038 for Model PH10JA04800GABAA\u003c\/h1\u003e\u003cp\u003eThese two OEM Carrier pressure switches are the factory-specified refrigerant safety controls for the \u003cstrong\u003eCarrier PH10JA04800GABAA\u003c\/strong\u003e packaged heat pump unit. The \u003cstrong\u003ehigh pressure switch (HK02ZA395)\u003c\/strong\u003e monitors the high side of the refrigerant circuit, opening at 395 PSI and resetting at 295 PSI to protect the compressor from dangerously elevated discharge pressure. The companion \u003cstrong\u003elow pressure switch (HK02ZB038)\u003c\/strong\u003e monitors the suction side, opening at 7 PSI and closing at 22 PSI with a 50-inch lead set, guarding against low-charge or evaporator freeze conditions. When either switch fails or trips without resetting, the unit will typically enter a hard lockout, short-cycle immediately after startup, or display a refrigerant fault code at the thermostat.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — High Pressure Switch HK02ZA395:\u003c\/strong\u003e Open 395 PSI | Close 295 PSI | 1\/8\" NPT thread | 240 VAC | Sensata PS80-03-0018 \/ P332-1103 | Replaces HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401, 312926-217, 71267D1, 19240027\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — Low Pressure Switch HK02ZB038:\u003c\/strong\u003e Open 7 PSI | Close 22 PSI | 50\" leads | Sensata PS80-02-F0074 | Fits Carrier, Bryant, and Payne platforms on the same refrigerant circuit\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e Genuine Carrier OEM switches are factory-calibrated to exact cut-out and cut-in pressures. Aftermarket substitutes frequently exhibit ±5–10% pressure tolerance drift, risking nuisance trips or, worse, failure to protect the compressor under true overpressure conditions — both costly outcomes on a packaged rooftop unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — System refrigerant must be recovered before replacing the high-side switch; low-side switch replacement also requires recovery on most configurations. EPA 608 certification required. Tools needed: refrigerant recovery machine, manifold gauge set, 1\/8\" NPT thread sealant (non-hardening), terminal connectors, multimeter. Always verify switch continuity before condemning; a tripped switch may simply indicate an underlying refrigerant issue.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against manufacturing defects. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the \u003cstrong\u003eCarrier PH10JA04800GABAA\u003c\/strong\u003e packaged heat pump unit. Verify your unit's data plate and existing switch markings against the part numbers above before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork, no return hassle.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641986601331,"sku":"CARRIE-PH10JA04800GABAA-PRESSURE_SWITCH-HK02ZA395","price":116.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641986634099,"sku":"CARRIE-PH10JA04800GABAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":102.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395.jpg?v=1775032982","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja04800gabaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}