No power, eliminating all variables before finding problem.

Most of the day, it's been raining. But it stopped long enough to check on this one. It's calling for cooling inside. Air handler's running, but nothing out here. I hear what sounds like the contactor humming. Let's see if it's... All right, that's getting 24 volts. I got no power. Let's see if I can show you. It's calling. No power. We have had something trip a breaker. So let's go here and see if we got... and go to the ground lug can you see that that's 9.3 mega ohms 9.3 mega ohms we got common start and run this work you can see it past experiences are telling me to clean a spot right there first we're going to test from here to here i got nothing nothing now it's showing 800 kilo ohms let me finish ohming out this compressor coming to start 2.2 ohms coming to run to it's like 0.7 so so run the start we should have something like 32.6 it's not perfect but it should run and by the way on these compressors these lugs normally come in two different variations two on top and one on bottom like this one and that's common start and then run on bottom and sometimes it has one on top and two on bottom and that's common start run but you can always look in here and find out all right we're testing on the ground lug can you see that 780 kilo ohms i'm gonna try something real quick let's omit the ground because i'm still showing nine mega ohms nine mega ohms nine mega ohms to ground that right there showing me 400 kilo ohms to ground and it's disconnected you see what i'm testing that's my power lead 400 kilo ohms that one's 1.5 mega ohms let's look in that disconnect this is this is supposed to be turned off not sure i'm gonna be able to get this we're ohming the ground i got nothing nothing nothing check for continuity in this wire so we're gonna swap this to that that's my white wire that continuity black wire just not understanding how I got ohms to ground okay now I'm showing nothing and now I'm showing nothing nothing do I have it on hold or something 180 kilo ohms to ground fried looks like a lizard back there that shouldn't have tripped a breaker those are not touching let's see if we still got kilo ohms to ground nothing all right sounds like that condenser fan motor was giving me my kilo ohms to ground but i'll be honest i have never seen well rarely have i seen a condenser fan motor trip a breaker we're fixing to go look for the breaker and reset this you see which one's tripped a 70 amp from hawks okay now i got two points before i hook these back up nothing okay that was a 70 amp breaker should not have tripped two for the compressor that seems a little high it was that breaker it's live right now tight oh that was loose i think it was just a loose connection oh that's hot smoke what it was a loose connection that's got to be it so it's a certain it's just gonna be a loose connection measured outside to assume that's aluminum. 70 amp breaker. So I recommended to this homeowner that we replace that breaker because I was afraid if something shorted outside a 70 amp breaker might not trip and it could start a fire. So I recommended to her that we replace the breaker. I had to go get it and I'm on my way back over there to replace it. I'll bring you along. I happen to know now that An electrician did that right there. I should have known better and put a 70-amp breaker on a condenser. I had to get this at my shop because it's after hours. I just happened to have one, and I knew I did. And that right there, no, is that number six? I'm not sure. Tighten those up a little bit. Once I get it in place, I'll tighten them up some more. I just don't want this to fall out while I'm... It looks like most of those are GE breakers. I feel much better about that. It's a long trip around for a breaker, but we found the problem. Prevented more serious problems.