The Control Board is an OEM replacement part for Frigidaire dryers. It is the central processing unit that controls all functions and operations of the dryer. The board receives input from sensors, activates heating elements and motor controls, and determines dryness levels based on temperature, moisture, and time settings.  Causes of a bad control board can include failure due to wear and tear over time, exposure to heat and electrical stresses during normal operating cycles, as well as damage due to external impact or moisture intrusion.  Symptoms of a bad control board include:  The dryer not starting or powering on Display/touchpad malfunctions  Failure to progress through cycles Inability to achieve set heat or time settings Erratic programs or operation This OEM replacement is also compatible with Electrolux and some Kenmore model dryers.Part Number 134557200NH (AP6890261) replaces 134557200, PS12728776.