Dirt Devil DD2502 Manual De Instrucciones página 10

Removing blockages from the hose
31. Remove the hose from the vacuum cleaner and telescopic
extension tube. Remove any blockage by inserting a wire coat
hanger into the hose.
NOTE: To test for a blockage in the hose, drop a small ball of
paper into the hose. The paper will drop through if the hose is
clear.