{"product_id":"carrier-ph1zpa060000aaaa-pressure-switch-jria74","title":"OEM Carrier High \u0026 Low Pressure Switch Kit HK02ZA395 \/ HK02ZB044 — PH1","description":"\u003ch1\u003eOEM Carrier High \u0026amp; Low Pressure Switch Kit HK02ZA395 \/ HK02ZB044 for Model PH1ZPA060000AAAA\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 refrigerant safety switches for the \u003cstrong\u003eCarrier PH1ZPA060000AAAA\u003c\/strong\u003e heat pump system. These switches continuously monitor refrigerant pressure on both the high and low sides of the refrigerant circuit. If pressure falls outside safe operating limits, they open the control circuit and shut the system down to prevent compressor damage. Common failure symptoms include nuisance lockouts, the system not cooling or heating, or the unit short-cycling shortly after startup. In many cases, both switches should be replaced together since refrigerant stress events affect both simultaneously.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — HK02ZA395 (High Pressure Switch):\u003c\/strong\u003e Open at 395 PSI | Close at 295 PSI | 1\/8\" NPT thread | 240 VAC | Sensata PS80-03-0018 platform | Replaces 312926-217, HK02ZA380, HK02ZA396, HK02ZA400, HK02ZA401\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs — HK02ZB044 (Low Pressure Switch):\u003c\/strong\u003e Open at 7 PSI | Close at 22 PSI | 50\" lead wires | 24V control circuit | OEM Carrier RCD, manufactured in Mexico\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM Carrier pressure switches are factory-calibrated to exact cut-in and cut-out tolerances. Generic aftermarket switches frequently carry wider setpoint tolerances, risking either nuisance trips or — more dangerously — delayed shutoff that can destroy a compressor. Always use OEM on refrigerant-side safety switches.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Recover refrigerant before disconnecting any refrigerant-side fittings (EPA Section 608 required). Tools needed: manifold gauge set, refrigerant recovery machine, adjustable wrench, 1\/4\" nut driver, multimeter. Photograph and label all wiring before disconnecting. Verify system pressures after reinstall before restarting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty on both switches. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for \u003cstrong\u003eCarrier PH1ZPA060000AAAA\u003c\/strong\u003e heat pump systems. Verify refrigerant type and existing switch PSI ratings on the unit data plate or service manual before ordering. Our parts specialists are available to confirm fitment — contact us before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641488101747,"sku":"CARRIE-PH1ZPA060000AAAA-PRESSURE_SWITCH-HK02ZA395","price":95.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641488134515,"sku":"CARRIE-PH1ZPA060000AAAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":83.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_6c965594-3b99-4128-926e-788c84ede197.jpg?v=1775033156","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph1zpa060000aaaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}