We have a new-construction house that had a delay in completing installation of some lights. One switch of three in a row upstairs has just recently been hooked up to some new wall sconces by an electrician friend (not the original electrician.) When he turned on the sconces, the circuit was tripped. After rechecking sconces, he noticed the neutral wire is tied into the hot which causes it to trip. Our original electrician won't answer the question, nor come out to correct it.\nBefore I get another master electrician out, I'd like to know why the wiring would be set up this way. A mistake or a shortcut of some sort? Other two switches work just fine.\nThanks for any suggestions!