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Step 1
The first thing you should always check on your central vacuum is the bag or canister. Empty the dirt canister or change the vacuum bag. This is the most common reason for loss of suction power in central vacuum systems.
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Step 2
Second, change or clean the vacuum's filter. If you have a washable filter make sure to wash it good and let dry before putting in back in the vacuum. You may also want to replace your filter if it is more than a few years old. This is the second leading cause of suction loss.
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Step 3
Once you have changed the bag or emptied the canister and washed or replaced your filter, make sure the canister is tightly sealed. When latching the dirt canister back to the unit, make sure it is completely sealed all the way around.
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Step 4
Lastly, purchase a bottle of central vacuum maintenance cloths. Make sure to run these clothes through each wall inlet to ensure your central vacuum's pipes are clear. This will also prevent future clogs as well.
