Quote Originally Posted by bmwe34 View Post
The fan sounds perfect when its running though very quiet and seems to work as it should. if a bearing was gone it would be very noisy. Seems to be more of an intermittent electrical fault. Probably have to strip out the fan and take a look
I did mine recently. Was ok too. Then became intermittent and only worked only round sharp bends! Swapped out and all is fine again. I agree with correct diagnosis too. You should be able to strip the cowling back to get a multimeter on it with not too much hassle.