Technician Cesar came to repair LG range top. Did not test equipment for working/nonworking order. Tech told me it needed a new board. I figured he knew what he was talking about but evidently he didn't. I had to make a decision about payment on the spot and decided to have it repaired. Charged $548.40. Power was returned to unit as tech was leaving and unit worked properly. Called tech two minutes later and he said he would check with his boss and would find out what to do. He said to wait until Monday (service was on a Thursday) and someone would call. No one ever called. I called Cesar four times yesterday and got no answer. Essentially, I was charged for something I did not need. I have used Sears in the past for other repairs but I am a very unhappy customer.