Description
When your furnace or HVAC unit is exhibiting erratic behavior — such as blower runs constantly, fan not turning off, ignition fails, or erratic cycling — the culprit is often the system’s control board. The Carrier HH84AA020 control board is the genuine OEM replacement designed specifically for Carrier, Bryant and Payne systems, engineered to match original equipment specifications and restore proper functioning.
Key Features
- Authentic OEM construction: Built to the exact specifications of Carrier’s original controller, the HH84AA020 ensures compatibility and optimal performance—avoiding the risks of mismatched aftermarket boards.
- Controls critical operations: Manages blower/inducer sequencing, fan delays, thermostat input signals, and safety interlocks—key to safe and efficient heating/cooling cycles.
- Diagnostic‑ready: Enables troubleshooting via LED status codes or relay indications, helping HVAC professionals identify faults quickly and reduce service time.
- Compact and durable: With dimensions around 5.6″ × 6.4″ and a lightweight profile (~0.35 lb), the board fits easily into standard control compartments.
- Maintains warranty integrity: Using the correct factory part helps preserve original equipment warranties and assures future service reliability.
