My backup HP laptop would not operate because of a “Cooling Fan (902) error”.
So I did this to rectify the problem on a computer I have not used for half a year….
The idea of blowing into the ventilation outlet to loosen the fan was from a forum page which I did not record. Thanks to the guy who suggested it.
As seen on YouTube http://www.youtube.com/watch?v=fjwIyGWjKrg.