{"product_id":"carrier-py1rpa090180acwa-pressure-switch-jrhhrg","title":"OEM Carrier Low Pressure Switch 7 PSI Open 22 PSI Close — HK02ZB044","description":"\u003ch1\u003eOEM Carrier Low Pressure Switch (7 PSI Open \/ 22 PSI Close) for Model PY1RPA090180ACWA — HK02ZB044\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier replacement pressure switch (part number \u003cstrong\u003eHK02ZB044\u003c\/strong\u003e) factory-specified for the \u003cstrong\u003eCarrier PY1RPA090180ACWA\u003c\/strong\u003e packaged unit. The low pressure switch monitors refrigerant circuit pressure and protects the compressor by interrupting operation whenever suction pressure falls below a safe threshold. When this switch fails or drifts out of calibration, the system may enter a hard lockout, trip fault codes, short-cycle, or fail to cool or heat entirely — symptoms often misdiagnosed as a refrigerant leak or board failure. Replacing this switch with the correct OEM part restores factory-calibrated protection and avoids repeat callbacks.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Opens at \u003cstrong\u003e7 PSI\u003c\/strong\u003e | Closes at \u003cstrong\u003e22 PSI\u003c\/strong\u003e | \u003cstrong\u003e50\" lead wire\u003c\/strong\u003e | SPST configuration | Factory-matched pressure tolerances for Carrier refrigerant circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM switch — factory-tested to exact cut-in\/cut-out pressure specs. Generic aftermarket switches frequently carry ±15% pressure tolerances, which can allow compressor damage under low-charge conditions or cause nuisance trips under normal operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Recover refrigerant before disconnecting the pressure port to comply with EPA 608 regulations. Tools needed: manifold gauge set, adjustable wrench, flathead screwdriver, and a multimeter to confirm switch continuity before re-commissioning. Photograph all wire connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM drop-in replacement for the \u003cstrong\u003eCarrier PY1RPA090180ACWA\u003c\/strong\u003e packaged unit. Always verify the part number printed on the original switch label and cross-reference the system data plate before ordering. Our fitment team is available to confirm compatibility before you buy — no guesswork, no returns.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640611885427,"sku":"CARRIE-PY1RPA090180ACWA-PRESSURE_SWITCH-HK02ZB044","price":90.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640611918195,"sku":"CARRIE-PY1RPA090180ACWA-PRESSURE_SWITCH-HK02ZB044-GEN","price":79.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZB044.jpg?v=1775036371","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1rpa090180acwa-pressure-switch-jrhhrg","provider":"National HVAC Parts","version":"1.0","type":"link"}