{"product_id":"carrier-u19x125u60b-control-board-167b2b","title":"OEM Carrier Circuit Board Control Board HH680001 — U19X125U60B","description":"\u003ch1\u003eOEM Carrier Circuit Board HH680001 for Model U19X125U60B\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM replacement circuit board (part number \u003cstrong\u003eHH680001\u003c\/strong\u003e) factory-specified for the \u003cstrong\u003eCarrier U19X125U60B\u003c\/strong\u003e. The integrated circuit board (IFC) serves as the central command hub of your HVAC system — it sequences the inducer motor, gas valve, igniter, blower, and all safety controls in a precise, timed operation. When this board fails, symptoms typically include system lockout with no heat output, erratic or intermittent operation, persistent fault codes on the LED diagnostic display, or a unit that simply will not respond to thermostat calls. Before replacing the board, verify that all safety switches, wiring harnesses, and fuses are intact — a shorted downstream component can take out a new board quickly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e HH680001 | Also supersedes: 58GA680087, P771-1003, 58GA75598, 75598\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier OEM board — factory-programmed with exact timing sequences, fault diagnostics, and safety lockout logic specific to your unit. Aftermarket boards often lack model-specific programming, leading to nuisance lockouts or unsafe operation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 4\/5\u003c\/strong\u003e — Requires disconnection of multiple wire harnesses, JST connectors, and low-voltage control wiring. Tools needed: 1\/4\" nut driver, needle-nose pliers, phone camera (photograph all wiring before removal), and a multimeter to verify 24V control voltage before condemning the board.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as the factory-matched replacement for \u003cstrong\u003eCarrier model U19X125U60B\u003c\/strong\u003e. Cross-references confirmed against superseded part numbers 58GA680087, P771-1003, and 58GA75598 — verify your existing board's part number against the data plate before ordering. Need help confirming fitment? Our team is standing by to verify compatibility before you purchase.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640246718835,"sku":"CARRIE-U19X125U60B-CONTROL_BOARD-HH680001","price":865.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640246751603,"sku":"CARRIE-U19X125U60B-CONTROL_BOARD-HH680001-GEN","price":761.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-HH680001_40f4cded-0ecb-4ffc-9d67-b3c3e4080cd9.jpg?v=1775018463","url":"https:\/\/nationalhvacparts.com\/products\/carrier-u19x125u60b-control-board-167b2b","provider":"National HVAC Parts","version":"1.0","type":"link"}