Experiencing issues with your Midea split wall mounted air conditioner's outdoor unit? The main control board (17122000038758) might be the culprit. If your air conditioner is not functioning as it should, or if it's experiencing erratic operations, a faulty main control board could be the reason. This genuine Midea part is designed specifically for split wall mounted air conditioners. Before purchasing, please verify the model number of your device to ensure compatibility.