It's unfortunate that they couldn't figure out the problem on site without bringing it into the shop. The neutral switch is not that hard to diagnose, and is what many of us here agreed was probably the problem right from the beginning. Not criticizing them in any way, just saying it could have been fixed alot quicker if they could have found the problem and fixed it there. But I know things don't always go well on service calls, and simple problems are sometimes hard to figure out. Glad it's finally fixed.