The main principle of functioning for a vacuum cleaner is to dislodge the debris and dirt and then clean it off using the suction system through the vacuum hose. Whether it is a commercial vacuum or a standard old style vacuum, almost all vacuum models and types follow this principle.
A person might have to face a lot of issues when dealing with the maintenance of a vacuum cleaner. The most common reason for the vacuum cleaner losing its suction is because of the vacuum hose getting plugged with dirt or debris. Other reasons include having a bad electric motor, a cracked or damaged vacuum hose or a full dirt bag. Whenever you start getting suction problems with your commercial vacuum, it can prove to be pretty expensive to have them replaced. Alternatively, getting the faulty parts repaired is much more affordable. A lot of the problems that vacuum cleaners face in relation to suction can be handled by the users themselves using standard household tools and very little technical knowledge or experience.

If your commercial vacuum has lost its suction power than the first thing you should check for are the bags. If the vacuum cleaner bag has reached it capacity, it will greatly affect the suction power of the vacuum and the unit will not clean effectively. If the dirt bag becomes full, then the airflow from the vacuum cleaner is severely restricted and this limits the amount of air that can pass through the bag reducing the suction by a significant margin. Whenever you are looking to replace the vacuum bag of a commercial vacuum you should check to make sure that the bag and hose are sealed together properly.

A plugged vacuum hose is also another common reason why a commercial vacuum might lose its suction power with time. A plugged vacuum hose can severely limit the air flow. To remove the clogging from the hose, you should detach it from the vacuum and make a careful inspection inside. You can easily remove the interference in the hose using a think and long object or even your fingers. Once the obstruction has been cleared, the hose should be attached back to the cleaning unit. If you have an extended hose like most commercial vacuum models do, you will need a longer object to dislodge the accumulated debris inside the hose. This can be done using the backside of a broom handle or some other long object.

If your commercial vacuum is still giving you suction problems even though the above two problems don't exist, you should then check the condition of the vacuum hoses and make sure that they are not damaged or cracked from any area. This is because a hose has to undergo a lot of usage and if you have a vacuum cleaner that uses plastic hoses, there are very good chances that the hose might have cracked from a particular location.

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