Unless you install a device to 'cleanse' the power coming into your home this will happen due to fluctuations. Think if you have seen on movies when someone is in the shower and the toilet is flushed causing the cold to change in pressure burning who is in the shower. Many people are using the same power you are so it fluctuates up and down easily seen by watching a light bulb or listening to a box fan on low
140 views
Usually answered in minutes!
×