6/23/2016 4:06 PM
Something seems off....why would tracing the 110/220 wire lead you to the heads? My vote is to hook up a generator at each clock to verify that it works. In the meantime, trace out your power wire path, check grounds and try a ground fault indicator to see if you have a short to ground. Most of the time, although not always, it's a bad splice on the hot or neutral wire, a bad ground, or a short to ground from a cut or nick in the wire casing.