{"product_id":"carrier-ph10ja036000aeaa-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS 7#OPN 50\" for PH10JA036000AEAA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 — 22#CLS \/ 7#OPN, 50\" Leads — for Model PH10JA036000AEAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch (part number \u003cstrong\u003eHK02ZB038\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PH10JA036000AEAA\u003c\/strong\u003e packaged heat pump unit. The pressure switch is a critical safety component in the inducer\/combustion circuit — it monitors negative pressure produced by the draft inducer motor and closes to signal the control board that proper airflow is established before allowing ignition to proceed. When this switch fails, the furnace or heat pump's gas section will lock out before ignition, the inducer will run but the system will not progress to the heating cycle, and you may see a diagnostic fault code pointing to an open pressure switch circuit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Closing setpoint 22\" W.C. | Opening setpoint 7\" W.C. | 50\" wire leads | Single-port hose connection | Factory-matched OEM switching tolerance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM part (HK02ZB038) manufactured to exact factory W.C. setpoints. Aftermarket pressure switches frequently carry wider switching tolerances that can cause nuisance lockouts or, worse, allow ignition under marginal draft conditions — a potential safety concern.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Straightforward swap. Turn off power at the disconnect and gas at the shutoff before beginning. Tools needed: 1\/4\" nut driver, needle-nose pliers, and a short length of replacement hose tubing (if existing hose is cracked). Photograph the hose routing and wire connections before removing the old switch.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty against 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 Engineered and factory-specified for the \u003cstrong\u003eCarrier PH10JA036000AEAA\u003c\/strong\u003e 3-ton packaged heat pump unit. Always verify the W.C. rating printed on your existing pressure switch or unit data plate before ordering — multiple pressure switch ratings are used across the PH10JA series depending on configuration. Our fitment team is available to confirm compatibility before you order. \u003cstrong\u003eIn stock — order now for same-day shipping.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642003116403,"sku":"CARRIE-PH10JA036000AEAA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642003149171,"sku":"CARRIE-PH10JA036000AEAA-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_d84dd3a3-35a1-4919-b138-90925bfdc5bb.jpg?v=1775036803","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja036000aeaa-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}