The Power Cord has a breaker on the plug. The breaker did not 'trip' during a power surge and fried the board in the plug. it melted. I ordered the replacement plug. Took apart the unit. Unplugged the power cord ends from the main unit. The ground wire (green) is screwed in. The other wires (white and black) are attached via push-on terminals. These are harder to get off and on since there are many and are in a tight space. May want to use some long needle nose pliers to assist. The new cable was attaced. There are two plastic clamps that help screw the cord to the unit. Only porblem was the new cord plugs in upside down so you will need to turn the outlet plug around. Turn off power, unscrew outlet and turn upside down. return power to outlet and plug in to complete.