CONTACT ME FOR BULK BUYING DISCOUNTS!! This circuit board, designed for use with Carrier furnaces, is a reliable replacement for a faulty fan control. It is compatible with the HH84AA018 model and is made by Bryant, a trusted brand in the industry. This product is perfect for those in need of a new control board without the need to replace the entire furnace. With easy installation and compatibility with various heating systems, this circuit board is a great choice for your heating and cooling needs.