if you experiencing reduced or no suction the dirt cup may be full or there may be a clog in your system first remove the dirt cup and empty it over the trash can twist off the lid and remove the separator from the dirt cup use a cloth to wipe off any debris then put the separator back in the dirt cup and tighten the lid make sure the door is closed all the way then rescure the dirt cup until it clicks back into place remove the hose by pressing the hose release button clear out any hair or debris stuck inside the hose then reattach it so it snaps firmly into place to access the brush roll recline the handle and lay your vacuum down use a Phillips head screwdriver to remove the six screws and take off the base plate clear out any debris or hair wrapped around the brush roll until the brush roll can turn freely by hand lastly put the base plate back on and rescure it with the six screws and that's it if you have any questions please feel free to reach out to us if your wind tunnel vacuum won't power on first make sure it's firmly plugged into a working power outlet if your vacuum is shutting off during use it's likely because it overheated and the thermal protector activated turn off and unplug your wind tunnel then let it cool down for about 30 minutes to reset the thermal protector when the thermal protector activates it could also mean there's a clog or that the filters need to be cleaned first remove the dirt cup and empty it over the trash can twist off the lid and pull the tab to remove the rinsable filter rinse it under running water until it runs clear allow it to air dry for at least 24 hours before putting it back in remove the hose by pressing the hose release button clear out any hair or debris stuck inside the hose then reattach it so it snaps firmly into place to access the brush roll recline the handle and lay your vacuum down use a Phillips head screwdriver to remove the six screws and take off the base plate clear out any debris or hair wrapped around the brush roll until the brush roll can turn freely by hand lastly put the base plate back on and rescure it with the six screws remove the HEPA filter at the base by pulling out the filter frame tap it over a trash can to empty any debris and wipe clean with a dry cloth we recommend replacing the primary filter every 6 months for Optimal Performance and that's it if you have any questions please feel free to reach out to us