Bongo Fury

My cab fan is gradually blowing slower and slower. When I first had my bongo the air flow on full would be very strong now it's very weak. I can't find any filters in the air ducts and nothing seems to be blocked. Is there anything else to try.

Thanks

There aren't any filters as such, a common problem is water getting into the motor and causing corrosion, the water comes from the windscreen scuttle plate because the drain hole blocks up. This set of images shows you what needs cleaning if its the motor http://www.g8dhe.net/bongo_images/air_fan_cleaning/

Thanks very much. Will give that a try.