Damaged Equipment - Internal Causes

Any time a large electrical load is turned on or off it generates a switching surge. This surge is similar to a lightning strike...only much, much smaller. What a surge might lack in size it makes up for in frequency. These switching surges occur hundreds, if not thousands of times per day.

Refrigerators, freezers, furnaces, vacuum cleaners, well or sump pumps, washing machines, dish washers and even electric hand tools can all cause switching surges. Over a period of time the small but continuously occurring surges will slowly wear out the electronic equipment.