{"product_id":"carrier-ph1ppa060000aaba-pressure-switch-jria74","title":"OEM Carrier High \u0026 Low Pressure Switch Kit HK02ZA395 HK02ZB044 — PH1PP","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit for Model PH1PPA060000AABA — HK02ZA395 \u0026amp; HK02ZB044\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 (HK02ZB044)\u003c\/strong\u003e — the factory-specified safety controls for the \u003cstrong\u003eCarrier PH1PPA060000AABA\u003c\/strong\u003e packaged heat pump unit. Together, these switches monitor refrigerant-side pressure and cut power to the compressor if pressure falls outside safe operating limits. A failed high pressure switch typically causes nuisance lockouts or tripped fault codes; a failed low pressure switch causes the system to short-cycle or shut down on a no-cool call. Replacing both at once eliminates future callbacks and restores full refrigerant-circuit protection.\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 rated | Sensata PS80-03-0018 platform | Factory-certified for Carrier PH1PPA060000AABA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — HK02ZB044 (Low Pressure Switch):\u003c\/strong\u003e Opens at 7 PSI | Closes at 22 PSI | 50\" lead wire | 24V control circuit | OEM Carrier\/Bryant\/Payne fitment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM switches are calibrated to exact factory cut-in\/cut-out tolerances. Aftermarket alternatives often drift ±5–10% on setpoints, risking compressor overload or premature lockout. These are genuine Carrier-branded parts — not substitutes.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Recover refrigerant before accessing high-side components (EPA 608 certification required). Tools: manifold gauge set, 1\/4\" and 3\/8\" flare wrenches, refrigerant recovery unit, multimeter. Always verify zero pressure before removing switches. Low pressure switch (HK02ZB044) is accessible without full recovery on suction side with proper valve isolation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both switches. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered for the Carrier \u003cstrong\u003ePH1PPA060000AABA\u003c\/strong\u003e packaged heat pump. The HK02ZA395 also cross-references to legacy part numbers including 312926-217, 71267D1, HK02ZA380, HK02ZA396, and HK02ZA400. Verify refrigerant circuit type and existing switch PSI ratings against your unit's data plate before ordering. Our fitment team is available to confirm compatibility — just reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641563206003,"sku":"CARRIE-PH1PPA060000AABA-PRESSURE_SWITCH-HK02ZA395","price":92.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641563238771,"sku":"CARRIE-PH1PPA060000AABA-PRESSURE_SWITCH-HK02ZA395-GEN","price":81.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_9245f2b1-c40a-47cd-9e7e-8898ae2a9d82.jpg?v=1775033168","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph1ppa060000aaba-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}