Lennox 81L75 Fan Control Board Fan Control Board

Fan Control Board

The 81L75 is a Fan Control Board for your home climate control system. The replacement component can be mounted at the junction of two metal ducts to redirect airflow into the room, or at one end of a duct to exhaust stale air out. The board also features a built-in High/Low temperature protection switch to prevent overheating.

This is a brand new Fan Control Board for Lennox Heat/AC Units. This is the low voltage part of the board and only needs to match your temperature switches.

The Lennox 81L75 Fan Control Board is used for gas furnaces. It typically controls the fan speed of the whole furnace. This particular Fan Control Board measures 2-1/2" x 3-3/8" and has 4 dip switches on it.

The Lennox® 81L75 Fan Control Board is the most up-to-date replacement for your outdated AC system. It's compatibility with older controls allows you to update your air conditioner without having to replace other parts or set up a whole new system. Unlike some other parts that may require a professional to repair, this control board can be installed in less than an hour by a novice DIY'er.

This is a replacement Lennox Fan Control Board for most models of Lennox Gas-Vent Forced Air Gas Furnaces except: Series HCC, Series HCH and Series HCM.

The Lennox® 80L75 Fan Control Board is designed to provide quiet operation and long-lasting durability. It can be installed in homes with up to 18" rough openings and 24" of space on both sides. This indoor comfort control board operates two motors that help provide air circulation for rooms between 275 and 375 square feet.

Make sure your 13,000 BTU Lennox evaporator coil is functioning properly by using this high quality fan control board. 81L75