{"product_id":"payne-pa10pa06000macaa-pressure-switch-jria74","title":"OEM Payne Pressure Switch High\/Low for PA10PA06000MACAA","description":"\u003ch1\u003eOEM Payne High \u0026amp; Low Pressure Switch for Model PA10PA06000MACAA\u003c\/h1\u003e\u003cp\u003eThese OEM pressure switches — \u003cstrong\u003eHK02ZA395 (High Pressure Switch)\u003c\/strong\u003e and \u003cstrong\u003eHK02ZB028 (Low Pressure Switch)\u003c\/strong\u003e — are the factory-specified replacements for the \u003cstrong\u003ePayne PA10PA06000MACAA\u003c\/strong\u003e packaged air conditioning unit. Pressure switches monitor refrigerant circuit pressures and signal the control board to shut down operation when readings fall outside safe parameters. A failed pressure switch typically causes the system to lock out before or during the cooling cycle, with no compressor engagement or an immediate trip on startup. If your Payne unit is shutting down shortly after calling for cooling, or never engaging the compressor at all, a faulty high or low pressure switch is one of the first components to test.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e High Pressure Switch — OEM Part HK02ZA395 | Low Pressure Switch — OEM Part HK02ZB028 | Factory-calibrated trip points | Designed for R-410A refrigerant circuit | Direct plug-in connector fitment for PA10PA06000MACAA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are calibrated to exact factory trip-point tolerances for the PA10PA06000MACAA refrigerant circuit. Generic alternatives frequently use broader tolerance thresholds, risking nuisance trips or — more dangerously — failure to protect the compressor from true overpressure or loss-of-charge events.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Refrigerant circuit work must be performed by an EPA 608-certified technician. Tools needed: manifold gauge set, multimeter, flathead and Phillips screwdrivers, needle-nose pliers. Always recover refrigerant and relieve system pressure before disconnecting switch lines. Photograph all wiring connections prior to removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e These switches are engineered specifically for the \u003cstrong\u003ePayne PA10PA06000MACAA\u003c\/strong\u003e packaged air conditioning unit. Verify your existing switch part numbers (HK02ZA395 or HK02ZB028) against your unit's data plate and wiring diagram before ordering to confirm correct high or low side replacement. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you purchase — no guesswork required.\u003c\/p\u003e","brand":"Payne","offers":[{"title":"OEM","offer_id":62909211935091,"sku":"PAYNE-PA10PA06000MACAA-PRESSURE_SWITCH-HK02ZA395","price":43.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909211967859,"sku":"PAYNE-PA10PA06000MACAA-PRESSURE_SWITCH-HK02ZA395-GEN","price":38.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZA395_b3c1cdeb-8585-4949-882a-7f2d88f5535a.jpg?v=1780718458","url":"https:\/\/nationalhvacparts.com\/products\/payne-pa10pa06000macaa-pressure-switch-jria74","provider":"National HVAC Parts","version":"1.0","type":"link"}