I have a Carrier natural gas furnace, Model 58D9125 BA, that had a bad thermocouple. I change the thermocouple successfully (keeping the pilot lit) but while doing so, I touched the bare connector on the back of the Furnace Limit Switch causing a spark. When this happened the blower fan kicked on and won't shut off. Also the furnace will not light I flipped the breaker off to shut the blower off, which I should have done before I caused this mess.

Since then I replaced both the Furnace Limit Switch and the Circuit Board, but still have the same problem. Please help! I don't know what else it could be? Is their anything else?