Blown transformer and low voltage short.

All right, on this one we have high voltage but no low voltage. I've already killed power to it, but we're going to end up replacing this transformer. That's one side of my low voltage. This is the other. High voltage goes straight to the bottom of the contact. Clip that. Put a fuse in this. First I'm going to put out one of those little breakers. If you look right here, it looks like black is common, orange is 240. So black and orange and cap off white and red. I like these units. They're easy to work on. This is a newer green dedicated horizontal heat pump. Primary voltage. And as you see on these, I'm not sure you can see that, but common is grounded. And that junction bar right there is common connection. I'm going to hook right up to that. And this is going to reconnect with our red. I'm going to... I'm going to fuse it. Because I don't know what blew the transformer, we are going to put this little breaker in here. Y'all see that? It's a little breaker. It'll pop if we got low voltage short. So my breaker blew, but what I'm going to do is disconnect. See what I'm doing. I'm gonna disconnect my thermostat wires. They're disconnected. My board's showing I got 24 volts. Internally, with nothing calling it's not tripping a breaker but let's bring on the blower you see that i jumped to blue and blew my breaker that tells me to look at my reversing valve this is a Rheem so it energizes and heat i'm fixing to do it again it's time to look at reversing valve and possibly frayed wires going to it i just unplugged my reversing valve and i found these frayed that looks like that may have gone to metal i'm gonna take that up and see if it still trips we got that plugged up and taped up so we're going to jump out to blue all right we got blue jumped out nothing i think that's our problem i'm fixing to wire that all back up and leave my fuse in and go from there clicking is good 24 volts on everything As far as I know it's still calling Pulling at the thermostat. But we can check that. No, thermostat's not calling. It must be a time delay. As you can hear, it's now on and running. That was our problem. Some frayed wires going to the reversing valve. But I've got a fuse in it now, so if something like that happens again, it won't blow the transformer, it'll blow a fuse.