The brush roll fitted at the bottom of the cleaner spins around and sweeps the carpet clean. If it becomes clogged up with hair, threads and other debris then it will no longer work efficiently. regular checking and cleaning of the brush will keep your product in tip top condition and cleaning the floor effectively.
Simply take out the brush and remove any debris tangled around it. Hoover recommend that for best results you replace the brush with a new one. Replacements can be purchased from the spares section of the website.
Also at this time check the belt is not stretched or worn. Fitting a new belt will greatly enhance the performance of your cleaner.