Not sure if this applies, but;
some stats have a feature that will allow it to "... finish on high fire/stage". I take this to mean that it will ramp down instead of continuing on max. This is a stat setting.
as for the fan, on product we install(our installers and many techs don't get this) if you have a single stage unit on a two stage board and Y1/Y2 are connected(by jumper or internal) then it runs Y2 blower speed. you MAY, like on our product, be able to separate Y1 & Y2 and connect to Y1 only and get its speed. This is on the unit board for us.
The Food Stamp Program, administered by the U.S. Department of Agriculture, is proud to be distributing the greatest amount of free meals and stamps EVER.
Meanwhile, the National Park Service, administered by the U.S. Department of the Interior, asks us to "Please Do Not Feed the Animals". Their stated reason for this policy "... the animals become dependent on handouts and will not learn to take care of themselves."
from an excerpt by Paul Jacob in Sun City, AZ