We ended up calling Rob Sanders. Great Guy!! We called on Sunday and left a message that we would like an appointment on Monday. He called back less than an hour later, on Sunday and he diagnosed the problem over the phone and my husband was able to fix it with just a trip to Ace Hardware. Thank you Rob!! Turns out to be a common problem. We were using our furnace instead of our heat pump for heat because it was so cold. The end caps on the wires that are connected together were not the correct size and the wires separated and arched and produced heat and melted (not the technical terms, but it is how I recall). Anyway all my husband had to do was power down, then trim the ends off the wires and get the correct size end caps and twist them on.