I am trying to figure out why a furnace keeps blowing 40 amp time delay fuses. It has 2 heating elements at 14 and 14.5 ohms each, I also pulled them out and visually inspected. The blower spins freely and the capacitor has 300 + volts. Each leg is pulling 35 amps when both elements are energized at 248 volts. It will run for about 15 to 30 minutes before it blows the fuse. The transformer was humming really loud so I replaced it. I don't know what else to check.