OEM Carrier Circuit Board (HH680001) for Model UPFLOW150U6020A

This is the genuine OEM Carrier circuit board (part number HH680001), the factory-specified replacement control board for the Carrier UPFLOW150U6020A upflow gas furnace. The control board serves as the command center of your heating system — managing ignition sequencing, blower fan timing, safety lockout logic, and two-way communication with the thermostat. When this board fails, symptoms can include the furnace not heating, erratic cycling, unresponsive controls, or a system stuck in lockout mode with no diagnostic flash codes.

• OEM Part Number: HH680001 | Carrier factory-original circuit board | Exact plug-and-play fitment for UPFLOW150U6020A — no modifications required
• OEM vs Generic: This is a genuine Carrier OEM board, not an aftermarket substitute. OEM boards carry factory-calibrated firmware, correct input/output configurations, and proper diagnostic LED behavior. Aftermarket boards may have timing or logic variations that cause nuisance lockouts or shortened equipment life.
• Install Difficulty: 4/5 — Control board replacement requires disconnecting low-voltage thermostat wiring, high-voltage line connections, and multiple harness connectors. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, smartphone or camera (photograph ALL wiring before removal), and a multimeter for post-install verification. Recommend qualified HVAC technician for installation.
• Warranty: 1-year OEM manufacturer warranty. In-stock and ships same business day from our warehouse when ordered by 5PM.

Compatibility: Designed specifically for the Carrier UPFLOW150U6020A upflow gas furnace. Always cross-reference the part number on your existing board and verify model number on the unit's data plate before ordering. Our team is available to confirm fitment — reach out before you buy if you have any questions.