HVAC blower fan works on all settings then stops working on all, consistently.

What is your question?

First start of the day all fan level controls are functional. When I get back to the car and start it up, consistently fails on all settings. When driving w/out it still feel the cool A/C drafting thru the vents, just no fan action. Leave the car off overnight, it always works. Same for an extended downtime. If it were the resistor wouldn't it still work on high since it is an unresisted electrical flow @ high? This " now I'm here and now I'm not makes me think fuse. Possible looses connection but it wouldn't be so predictable. Any thoughts?