Interior Fan speeds randomaly slows down

[Nick C]

My 2007 SS-V’s fans randomly slow down and won’t go back up, it’s like something is blocking it.

When I leave the car off for about 20 mins it goes back to normal.

 

[Kingcarl]

My 2007 SS-V’s fans randomly slow down and won’t go back up, it’s like something is blocking it.

When I leave the car off for about 20 mins it goes back to normal.

Could be icing up mate. Mine did it once and VE s are known for it. Easiest way to test is.... while its doing it push the AC button to turn of AC only and see if over a couple of mins your fan speed creeps back up. If so it just indicates the ice has melted away.
There is a thread on here for a long term fix if that is the issue.