If you’re not sure whether your appliance needs repairing, there are a few things you can do to help determine this. One is to look for any obvious signs of damage, such as a broken or cracked case. You can also check the cords and plugs for any damage, and listen for strange noises coming from the appliance. If it’s been more than a year since the appliance was last serviced, it might be a good idea to have it checked out by a professional.