{"product_id":"carrier-ph10ja036000afaa-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 22#CLS 7#OPN 50\" Leads — PH10JA036000AFAA","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 for Model PH10JA036000AFAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch for the \u003cstrong\u003eCarrier PH10JA036000AFAA\u003c\/strong\u003e packaged heat pump \/ gas-electric unit. The pressure switch monitors the inducer motor draft by measuring the negative pressure (water column) inside the vent system. If the switch fails to close — or is stuck open — the control board interprets this as a venting fault and locks out the unit before any ignition is attempted. Common symptoms include a system that powers on, the inducer spins up, and then shuts down with a pressure switch fault code before any heating cycle begins.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Closing pressure: 22\" W.C. | Opening pressure: 7\" W.C. | Lead length: 50\" | OEM part number: HK02ZB038 | Also cross-references PS80-02-F0074\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM switch calibrated to exact factory W.C. tolerances. Aftermarket switches can drift outside the rated trip point, causing nuisance lockouts or, worse, failing to detect real venting problems — a safety risk.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off power and gas before servicing. Disconnect the two leads (photograph first), remove the 1\/4\" hex screw securing the switch bracket, and swap the hose port. Tools needed: 1\/4\" nut driver, needle-nose pliers, flashlight. Verify hose and port are free of condensate blockage before reinstalling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against manufacturing defects. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for \u003cstrong\u003eCarrier PH10JA036000AFAA\u003c\/strong\u003e packaged units. Verify the closing and opening W.C. ratings on your existing switch's label before ordering to ensure an exact match. Our HVAC parts specialists are available to confirm fitment — order with confidence and get back up and running today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642002231667,"sku":"CARRIE-PH10JA036000AFAA-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642002264435,"sku":"CARRIE-PH10JA036000AFAA-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_003ac3c4-4e95-4055-90ab-47597154404c.jpg?v=1775036866","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja036000afaa-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}