OEM Carrier Circuit Control Board HH680001 for Model U19X150U60B

This is the genuine OEM Carrier circuit board (part number HH680001), the factory-specified replacement for the Carrier U19X150U60B unit. The control board is the operational nerve center of your HVAC system — it sequences every major function including ignition staging, blower motor operation, safety circuit monitoring, and fault code diagnostics. When this board fails, the system may exhibit no-heat lockout, fail to initiate a heating cycle, short-cycle unexpectedly, or display fault codes with no other identifiable cause. Before replacing, always rule out more commonly failed components such as the flame sensor, pressure switch, and transformer.

• OEM Part Number: HH680001 | Also replaces: 58GA680087, P771-1003, 75598, 58GA75598 — factory-identical specification, no modifications required
• OEM vs Generic: This is a genuine Carrier-manufactured board with factory-programmed logic, matched timing sequences, and certified tolerance levels. Aftermarket boards may not replicate proprietary firmware or safety lockout behavior, risking system damage or voided equipment warranties.
• Install Difficulty: 4/5 — Requires disconnecting 24V and line-voltage wiring harnesses, photographing or labeling all connectors before removal, and careful ESD handling. Tools needed: Phillips and flat-head screwdrivers, needle-nose pliers, multimeter. Professional installation strongly recommended.
• Warranty: 1-year OEM factory warranty. Ships same business day from our warehouse — don't let a failed board leave your system down overnight.

Compatibility: Directly fits Carrier model U19X150U60B. Verify your existing board's part number on the board label before ordering. Questions about fitment? Our HVAC parts specialists confirm compatibility before every order — call or chat us today.