I have a Syncrowave 200 that I bought used. Machine looks brand new, was roughly 1 year old when I bought it and used as a backup machine in a small shop. I hooked it up yesterday and can't get it to work. When the foot pedal in pressed, the machine displays "over temp" in the 2 screens. I searched and haven't had much luck finding this issue. Reading the manual I should be seeing "over temp recf or xmfr, but all I'm getting is "over temp" Any suggestions on what it could be? Thanks