OEM Carrier Circuit Control Board HH680001 for Model UPFLOW175U6019A

This is the genuine OEM Carrier circuit board (part number HH680001) — the factory-specified replacement for the Carrier UPFLOW175U6019A upflow gas furnace. The integrated furnace control (IFC) board serves as the central brain of your heating system, orchestrating ignition sequencing, blower fan timing, inducer operation, safety circuit monitoring, and thermostat communication. When the control board fails, symptoms typically include a complete system lockout, erratic or intermittent heating, failure to initiate ignition, blower running continuously or not at all, or flashing diagnostic fault codes on the board's LED indicator.

• Part Number: HH680001 (cross-reference: 0854680) | Genuine OEM Carrier replacement | Engineered specifically for the UPFLOW175U6019A upflow furnace platform
• OEM vs Generic: This is a factory-original Carrier board — not a third-party clone. OEM boards preserve factory-calibrated timing sequences, safety lockout thresholds, and diagnostic LED codes. Aftermarket boards may not replicate all safety functions accurately, risking nuisance lockouts or premature component wear.
• Install Difficulty: 4/5 — Control board replacement requires shutting off power and gas, photographing all wiring harness connections before removal, and carefully transferring connectors one-by-one. A multimeter is recommended to verify 24V control voltage prior to installation. Professional installation is strongly advised if you are unfamiliar with furnace wiring schematics.
• Warranty & Shipping: 1-year OEM manufacturer warranty against defects. In stock and ships same business day from our warehouse when ordered before cutoff.

Compatibility: Designed for the Carrier UPFLOW175U6019A upflow gas furnace. Always verify your existing board's part number and confirm HH680001 is printed on the board label before ordering. Our team is available to verify fitment — contact us before checkout if you have any questions. Order now for same-day shipping!