I have Bryant fb4anf030, it is an a/c only. I keep blowing the small 5 amp fuse on the circuit board. I disconnected the blower from the circuit and it still blows the fuse. I then disconnected the transformer and it didn't blow. Do you think the problem could be the board or the transformer. I have 245 volts incoming and 28 volts out of the transformer. It is a 208/230 transformer.