Thank you for using our Haier product. This easy-to-use manual will guide you in getting the best use ofyour product. Remember to record the model and serial number. They are on label in back of the unit.Staple your receipt to your manual. You will need it to obtain warranty service.3. LOCATION OF CONTROLS AND COMPONENTS3.1.Board LocationNo.Parts numberDescriptionABoardMain BoardBBoardPower Board3.2. A Board---- Main Board8