Assuming the wire is damaged in only one spot, there should be no need to rip up the entire floor. We only use NuHeat in our installations and saw this demonstrated recently. The NuHeat rep came and rigged up equipment and slowly raised the voltage to activate separate ends of the wire. Then, laying several sheets of temperature sensitive film(about the size of standard paper) one after the other and tracing the pattern of the wires, he was able to find the precise spot in the break of the wire. One tile came up, repair was made and the floor works perfectly.
Check with a Nuheat rep in your area. If you have a non Nuheat floor, they may charge for the service.
Cut wires in heated floors is more common than you think! Plumbers have drilled through floors for their plumbing in kitchen islands, Finish carpenters have drilled through tiles to place their doorstops, etc.
[This message has been edited by Sandro (edited 12-12-2006).]
