'76 Beauville - no A/C blower...

In the midst of a "heat wave", my A/C blower died... suddenly. Checked fuse panel, and A/C fuse was replaced, but to no avail.

When I turn on the 3-way blower switch (system is an add-on) the compressor engages, but no blower. Have looked for an in-line fuse for the blower motor, but have not found one yet.

Any suggestions?

Thanks!

Have you checked for power at the blower motor? If there's power there, check the ground (some of these units are mounted in a fiberglass cap so there is no ground locally..) Follow the wires to see if one of them goes to a screw in the sheetmetal somewhere. If it does, remove it , clean it, put it back, nice and tight. Try your blower. If that's not it, and you are sure you have power to it, replace the blower motor.

When my blower acted up (92 G20) the first time, it was the power wire melting off at the blower motor. The second time it melted off, it melted into the motor and I had to replace the whole motor. The next motor lasted less than a year, and got to where it wouldn't start blowing until we got up some speed and the vent flow started it turning. Replaced it too... Caution, the parts books list several motors and fan blades, some blow the other direction, check carefully...

When my blower acted up (92 G20) the first time, it was the power wire melting off at the blower motor. The second time it melted off, it melted into the motor and I had to replace the whole motor. The next motor lasted less than a year, and got to where it wouldn't start blowing until we got up some speed and the vent flow started it turning. Replaced it too... Caution, the parts books list several motors and fan blades, some blow the other direction, check carefully...
In your case, I would automatically suspect the ground wire. It's the same for the front blower motor under the hood. 9 times out of 10, blowing the fuse or melting the power wire from these is caused by a bad ground. The front blower motor is mounted in a plastic box. The ground wire is just a slide-on spade connector. These get dirty and corroded, especially since they are positioned in a way that they collect rain water and road grime. In either case (front or rear), remove the ground wire at the chassis end and at the motor end. Clean well, apply some conductive grease and make sure the connections are tight when putting it back together. Do the same for the power wire on the blower motor end.

The ground wire is just a slide-on spade connector. These get dirty and corroded, especially since they are positioned in a way that they collect rain water and road grime.

Thanks, and now that you remind me... Yes, and you forgot to mention RUST.

Where do you get your "conductive grease"??

Any auto parts store should have it.