Although there are major problems that can occur in a Dyson vacuum, the majority of the problems can be fixed with a little elbow grease. Many people think that fixing a Dyson vacuum will require the help of an authorised service agent, but typically this isn't the case. The most common problems occur with blockage. When there is a clogged tube, the Dyson will not suck the debris into the containment canister. Other problems could be a faulty or broken vacuum belt.
Remove the filter from the Dyson vacuum. The filter is found on the front of the Dyson within the filter housing.
Unhook the filter from the front of the unit and take it to a sink.
Run warm water over the filter until you start to see dust and dirt falling off of the filter.
Dry the filter with a clean towel.
Lay the filter out on the towel for a couple of hours until it fully air-dries.
Unplug the vacuum from the power outlet in your home. Lay the vacuum on its back so the mouth and agitator are facing up.
Use a flathead screwdriver to turn the three plastic knobs on the bottom of the vacuum’s mouth counterclockwise. Pop the baseplate off of the unit. Pull the agitator brushes out of the unit.
Clean any dirt or hair off of the brushes. Wrap the new belt around the belt groove on the agitator brush roll.
Place the brush roll back into the housing and stretch the belt to wrap over the motor shaft above the brush roll. This will be a small, black pin attached to the motor.
Move the brushes so you know that the belt is in place. Replace the baseplate on the Dyson vacuum and then replace the three knobs holding it in place.