Sam shows you five different options for repairing a backbox when the metal lug has broken or the thread has been stripped. Which one is best? You decide!. When it fails, symptoms include uneven wet spots in the yard, slow indoor drains, and sewage odors. Fixes range from jetting clogged outlets. We will explore some of the most common issues with distribution boards and offers guidance on how to address them. It can occur due to overloaded circuits, short circuits, or ground faults. This Fix-It Guide tells how an electrical service panel works, what often goes wrong, how to identify an electrical service panel problem, and what parts and tools you will. This screw must be installed at the main service panel, and removed in a downstream panel.