Dyson DC58 Loses Suction

One possible cause of reduced suction power is a clogged brush bar. Locate the two dials of the vacuum’s brush head attachment. Turn each dial one quarter-turn, counter-clockwise until it clicks. Turn the cleaner head over so you can see the vacuum’s sole plate. Remove the sole plate and clear any hair or debris from around the brush bar. Replace the sole plate and turn the dials on the brush head clockwise. Power the device on and try vacuuming as normal.

If a nozzle or attachment becomes blocked or clogged, the vacuum will automatically shut off to prevent further damage. To clear the blockages, turn off the vacuum’s power and unplug the vacuum. Next, remove the tool head from the vacuum wand. Remove the wand from the vacuum’s base. Visually inspect the inlet of the vacuum base, the inside of the wand, and the neck/base of the tool head. Carefully remove any visible blockages. Once the blockages are removed, power on the vacuum, and try to use it again.

If the filter becomes blocked, the vacuum will not function properly and may sporadically turn off during use. You may need to remove and clean out the filter. Remove the filter by twisting the purple dial labeled “filter” located at the top of the vacuum. Pull the filter out of the vacuum and rinse it under running water for at least two minutes, or until the water runs clear. While rinsing the filter, gently shake it to remove any built-up debris. Gently wring out the filter to remove excess water. Place the filter in a dry, warm environment and allow it to dry for at least 24 hours, or until the filter is completely dry. Then, place the filter back into the vacuum and try to use it normally.