Jan and I did our mile walk again this morning, but this time with almost no wind. Much nicer. As was sitting outside afterwards with our coffee. Then when I put her back inside and leave the door open, she cries at the screen door and wants back out. While we were outside a lady came by on her walk, and seeing Karma, stopped to talk about traveling with cats, as she has one too.
After I worked on web stuff for a while, I spent the rest of the morning slogging through the truck electrical schematics, trying to make sense of them. The problem is that the schematics call parts one thing, but the text and the imprints on the panel covers call them by another name. But I finally got things straight in my head well, as straight as things ever get in my head. Since the schematic showed the contact was always hot, I used a jumper lead to bridge between the two marked contacts.
Removing the jumper, I started the truck, turned the AC on, and then replaced the jumper. In a few minutes my infrared thermometer showed I was getting 45 degree air out the vent. The next thing I did was pull out the the relay labeled Radiator Fan which was labeled Condenser Fan relay elsewhere, which is what it is ,. I now used a jumper lead to bridge between the two marked contacts here, expecting to hear something from the condenser fan, but I got nothing.
Of course that could mean that the fan is dead, but I wanted to check further. Since I was supposed to have 12v on the right hand contract I checked there with the voltmeter, and found 0 volts. So why? Looking at the schematic it showed it should always be hot.
The only thing between the 12v power bus and the relay is a 50 amp fuse that I had already checked a couple of days ago. But since that fuse was the only thing between the 12v and the relay contacts, I checked it again.
