{"product_id":"carrier-ph10pa048000abaa-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22\/7 PSI 50\" Leads — PH10PA048000ABAA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 for Model PH10PA048000ABAA\u003c\/h1\u003e\u003cp\u003eThis OEM pressure switch (part number \u003cstrong\u003eHK02ZB038\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH10PA048000ABAA\u003c\/strong\u003e packaged heating unit. The pressure switch monitors negative pressure produced by the inducer motor to confirm proper venting before allowing the ignition sequence to proceed. When this switch fails — or if it trips due to a blocked flue, cracked hose, or worn inducer — the control board will lock out the heating cycle entirely, leaving the system with a no-heat condition before a single ignition attempt is made.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 22 PSI close | 7 PSI open | 50\" lead wires | Single-port low pressure switch | Factory-matched setpoints ±1% tolerance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches from Carrier are calibrated to exact water-column specifications for the PH10PA048000ABAA inducer assembly. Generic aftermarket switches frequently drift off setpoint, causing nuisance lockouts or — worse — allowing the burner to fire under unsafe venting conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off power and gas before servicing. Inspect and clear the pressure switch hose for cracks or blockages before replacing the switch itself. Tools needed: flat-head screwdriver, needle-nose pliers, manometer (recommended for setpoint verification). Photograph hose routing and wire positions before disconnecting.\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 when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for \u003cstrong\u003eCarrier model PH10PA048000ABAA\u003c\/strong\u003e packaged heating unit. Verify pressure switch rating on your unit's wiring diagram or data plate before ordering — setpoints vary across the PH10PA series. Our HVAC specialists can confirm fitment prior to purchase. Order today and get this part on its way to your door with same-day shipping.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641982013811,"sku":"CARRIE-PH10PA048000ABAA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641982046579,"sku":"CARRIE-PH10PA048000ABAA-PRESSURE_SWITCH-HK02ZB038-GEN","price":50.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-pressure-switch-HK02ZB038_86e36adb-29fc-4332-bed1-f1828cb127f5.jpg?v=1775037083","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10pa048000abaa-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}