HVAC Going... going... gone (no blower) 1985 300TD

[WarTowels]

I could use some guidance with my 85' TD.

When I purchased the vehicle not so long ago, I had two options on the HVAC:

1. Full blast heat to defrost area and main circle vents
2. Full blast with slightly less heat to defrost area and main circle vents

I was totally cool with this mostly nonoperational system as it's winter here and I could actually stay warm. However, yesterday the blower didn't come on. Ut-oh.

Today, I tried the hvac with just the ignition on and the blower motor came on but seemed weaker. Then later today when I ran an errand back to nothing.

I've checked the main fuse box and everything looked OK. Ive tried finding a separate out of the main fuse box fuse but haven't seen anything. That's about as far as my current knowledge extends.

I can say when the blower was working it was very powerful at it's max setting and was working fine one day and then nothing at all the next.