When it comes to air conditioning systems, one of the most important components is the AC control board. This board is responsible for controlling the various components of the air conditioning system, such as the compressor, fan, and thermostat. It is the brain of the system, and it helps to regulate the temperature and ensure that the system is running efficiently. The cost of an AC control board can vary depending on the type of system and the size of the unit. Generally, the cost of an AC control board will range from a few hundred dollars to several thousand dollars. It is important to note that the cost of the board does not include installation, which will be an additional cost. When purchasing an AC control board, it is important to make sure that it is compatible with the existing system, as this will ensure that the system runs smoothly and efficiently. Additionally, it is important to ensure that the board is of high quality, as this will help to ensure that the system runs optimally for a longer period of time.