Low Voltage Short, Shorted Contactor

All right we got nothing working. Well I can hear the transformer but um we may not have 24 volts. See if it's got a fuse. I think it does. Yep it's blown. So we got to figure out what's blowing the fuse from outside. There's lots of sparks that tripped it right outside. I can't figure out why it's tripping. Jumped to yellow. It was blowing a fuse. So let's see if we can't figure out Wow, that is... I think it was our contactor. All right, let's change the contactor. Power's off. Do I have anything on bottom? Yeah, I got one black one on bottom. I have left my long quarter inch nut driver somewhere. I gotta be careful. There's a looks like black widow's nest down there. Got us a two pole 24 volt coil. That's what we need. Black goes on the left, orange and red on the right. I'm still going to do one wire at a time. And this black one goes down here on the bottom. I'm not sure if this is an active black widow, but those are definitely black widow egg balls down there. I just hooked up, made me a wire nut for common here, which are staying pulled in. Alright, we have heat.