Technicians arrived Thursday March 4 but no appointment was scheduled (it wasn't a good time). Two technicians arrived; one of whose shorts were partway down his butt. It was unprofessional. They then spent 5 hours replacing the wire and it still was not fixed. They had to call in a 3rd person who then diagnosed contact part had to be replaced. Made me wonder whether the wire needed replaced . They were all very polite though. Up until now, the service has been fine, so this was disappointing.