The front left barrier board subassembly (12220300001115) is an important part of your Midea window air conditioner. If you're experiencing issues with airflow or unusual noises, this component might be the culprit. A worn or damaged barrier board can lead to decreased efficiency or operational problems in your air conditioning unit. Addressing these symptoms with the correct replacement part can help get your appliance back in working order. Before purchasing, verify your device's model number for compatibility.