Wind speed control: There are usually different wind speed adjustment options on the control panel, and users can choose the appropriate wind speed gear according to their needs to achieve better air circulation and comfort. Timer function: The control panel usually has a timer on/off function, where users can preset the on/off time of the air conditioner to avoid waste caused by long-term operation, and automatically turn on or off the air conditioner when needed. Fault diagnosis: The control board also has fault diagnosis function. When the air conditioner malfunctions, the control board can detect and display corresponding fault codes, helping users quickly find the problem and repair it in a timely manner. Communication interface: Some advanced air conditioning duct control boards also have communication interfaces, which can be connected to other smart home devices or central control systems to achieve remote control and monitoring, and provide more intelligent services. DB93-11112D DB93-11112E