Oh no, I meant 'default' in the heat-only aspect. The blower only comes on when one of the buttons is depressed (except the OFF button

) All the different function-buttons change the speed of the fan accordingly.
About the servo: I though that its tendency to fail was caused by warping and cracking of plastic shell where the elements could then find their way in. Mine is not cracked and I considered myself lucky - maybe I'm not.
How else could one tell if the servo's the culprit?
regards,
- Ryan