Your Midea split wall mounted air conditioner might be experiencing electrical issues if the terminal board sub assembly is compromised. This genuine terminal board sub assembly (17222000031639) is designed specifically for Midea outdoor units of split air conditioners. It is important to replace this part if you notice inconsistencies in performance, frequent power interruptions, or error codes related to the terminal board. Before purchasing, confirm that this part matches your device's model number for proper compatibility.