In the event that your air compression leg massager won’t turn on, you should first check that it is set up properly, and that its AC wall adapter is firmly plugged into a nearby wall outlet. It’s essential that you follow the instructions in the User Guide exactly as they were written, to ensure proper operation of the product and an effective leg sleeve compression massage. Make sure your chosen wall outlet isn’t wet, dirty, damaged, or visibly malfunctioning in any way. Only use the massager in cool, dry environments, without high humidity, or extremely high or low temperatures. Never use a wall outlet that is near any water or other liquids, as well as any damaged power cords. This may cause irreversible damage to the product, electric shock, serious injury to yourself or others, and even result in a fire in some extreme cases. If your leg compression massager still won’t turn on, even after following all of the tips above, then an issue may be present with the product’s internal hardware. Do not attempt to repair, modify, or disassemble your PROfit RecoverMax on your own. Instead, please call or email us at 1-855-GO-TZUMI or support@tzumi.com. An experienced customer service representative will be more than happy to assist you.