{"product_id":"carrier-tfaccy389026201-pressure-switch-jrhhvr","title":"OEM Carrier Pressure Switch 7#OPN 22#CLS 50\" Leads — TFACCY389026201","description":"\u003ch1\u003eOEM Carrier Pressure Switch HK02ZB038 — 7#OPN \/ 22#CLS \/ 50\" Leads for TFACCY389026201\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement pressure switch (part number \u003cstrong\u003eHK02ZB038\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier TFACCY389026201\u003c\/strong\u003e. The pressure switch is a safety device that proves the inducer blower is operating and generating adequate negative pressure before allowing the gas valve and ignition sequence to begin. When this switch fails or sticks, the furnace will attempt to start, fail to advance past the inducer pre-purge stage, and ultimately lock out — leaving you with no heat. Common symptoms include an inducer motor that runs but the furnace never lights, a flashing fault code indicating a pressure switch error, or a unit that starts and immediately shuts back down.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 7 PSI open | 22 PSI close | 50\" wire leads | OEM-matched W.C. rating | Factory-specified Carrier replacement\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM pressure switches are factory-calibrated to exact set-point tolerances. Aftermarket alternatives can drift out of specification, causing nuisance lockouts or — worse — failing to protect the heat exchanger from unsafe draft conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off power and gas before beginning. Tools needed: flathead screwdriver, needle-nose pliers. Note the hose port orientation and lead routing before disconnecting. Reconnect the rubber tubing fully to avoid false trips after installation.\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 Engineered and factory-matched for the Carrier \u003cstrong\u003eTFACCY389026201\u003c\/strong\u003e. Always confirm the pressure switch W.C. rating printed on your existing switch label matches before installing. Have a question about fitment? Our HVAC parts specialists verify compatibility before you order — call or chat now.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640269558131,"sku":"CARRIE-TFACCY389026201-PRESSURE_SWITCH-HK02ZB038","price":57.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640269590899,"sku":"CARRIE-TFACCY389026201-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_62bc4628-3ec8-4a42-96c1-21db9443a91e.jpg?v=1775037171","url":"https:\/\/nationalhvacparts.com\/products\/carrier-tfaccy389026201-pressure-switch-jrhhvr","provider":"National HVAC Parts","version":"1.0","type":"link"}