The very first thing you need to consider in vacuum cleaner repair works is find the source of the problem. Always consider asking this three questions:-
1) What has causing it to malfunction?
2) How does it happen?
3) Is it easy to repair? (Very important. If it is not, send it to a real specialist)
Damage to the parts of vacuum is the one that always cause problems. You need to check the whether the belt of the vacuum cleaner is still functioning or not. How are you going to know whether it is still working? Make sure the belt does not snapped or got stuck around the brush that is located inside the vacuum cleaner. You will have to unscrew the small plate located on the brush in order to have a better look into this problem.
If you really want to repair the vacuums yourself, you have to clean up the vacuum agitator brush from any dirt, dust, debris or hair. In order to do this, cut the damage belt with a new belt and screw the plate back to its original position.
Some people prefer to use a bagged vacuum cleaner,. The only drawback is the bag need to be change regularly and swap it with a new one once it is full. The dirt will cloak the hose when the bag is fully overloaded if you forget to change the bag and you have to spend unnecessary cost to repair it where you can avoid this in the first place.
Sometimes, the vacuum cleaner does not have the suction power as before after you have used it frequently. You might think it is due to bag overloaded but after you have changed it, the suction power is still weak. To make things right, check inside the hose. There might be something slightly bigger than the hose that block the circulation of the vacuum cleaner. Use a small stick or broom that can fit inside the hose and push it out.
If you have notice, there are only 3 things that cause the malfunctioning of a vacuum cleaner:-
1) Damage belt
2) Agitator brush problem
3) Blockage of the host