Plain Jane OEM nothing to see here rebuild

[JustJeff]

Need some electrical advice.

Is it possible for my efan to be pulling air on low, but pushing air on high? It's a 3 wire taurus efan. I have not been using high setting until this past weekend. I noticed it tonight because I was testing my fans. I have a spare and was swapping the wiring on the car to test to see if my spare one also caused the my 40amp reseting circuit breaker to trip. It was not so I switched back to my mounted fan. I had the car idling and efan on highbwith a manual switch. I wanted to check my battery with my multitester to see what high was doing to my battery. I had air blowing out from the bumper grill onto my shins and feet. With the engine still running I swapped the wiring to the low and the fan direction changed directions.

I've been told this is not possible...but I saw it with my own eyes....felt it with my own shins.