Minnie has been down for a few weeks with electrical issues. The funny part is the solution was straightforward. Remember start easy start at the battery terminals. Sadly I started ripping the dash apart thinking the ground issue was in the cab being the fuel gauge would drop to empty and chime there was no fuel left there was over a 1/4 tank. I've got another I've gotta check on power door locks but they just quit. Maybe a fuse? Minnie is back to running with a bit of effort.

I've gotta ask why would a blower motor for the front not work till the front of the cab warns up in the sun? No blown fuses. Relay is good.

Armature shaft binding when cold.   See if tapping on the housing frees it up. 

Yeah i put a laughing smiley because you have to pull the dash apart just to even see a little bit of the blower motor. It's on top of the HVAC case on the passenger side. I'll see if I can find a image in my service manual.

 Can you access it through glove box?

According to the service manual you should be able to see it but location of the blower motor is near the firewall. I'm pretty sure the bearings on the blower are shot.