Dyson DC39 Troubleshooting

If you are having problems with your Dyson DC39 Vacuum Cleaner, you are not alone. Many Dyson DC39 owners experience issues with their vacuum cleaner from time to time, and it can be frustrating to deal with these problems.

I have problems with my Dyson DC39

Dyson DC39 Vacuum Cleaner Problems

Below are common issues and solutions for the Dyson DC39:

The Dyson DC39 Cleaning Your Clear Bin


  • Remove the cyclone and clear the bin (instructions above).
  • To separate the cyclone unit from the clear bin press the red button to open the clear bin base. This exposes a small silver button behind the red opening mechanism. Press the silver button and separate the cyclone unit from the clear bin.
  • Clean the clear bin with cold water only.
  • Ensure the clear bin is completely dry before replacing it.
  • Do not use detergents, polishes, or air fresheners to clean the clear bin.
  • Do not put the clear bin in a dishwasher.
  • Do not immerse the whole cyclone unit in water or pour water into it.
  • Clean the cyclone shroud with a dry cloth or dry brush to remove lint and dust

The Dyson DC39 Washing your filter


  • Your appliance has one washable filter, located as shown.
  • Check and wash the filter regularly according to instructions to maintain performance.
  • Switch ‘OFF’ and unplug before checking or removing the filter.
  • The filter may require more frequent washing if vacuuming fine dust.
  • Wash the filter with cold water only. Do not use detergents. Hold under a tap and run water through the open end for 10 seconds. Turn upside down and tap out 10 times.
  • Squeeze and twist with both hands to make sure the excess water is removed.
  • Run water over the outside of the filter for 15 seconds.
  • Squeeze and twist with both hands to make sure the excess water is removed.
  • Place the filter on its side to dry. Leave to dry completely for 24 hours.
  • Do not put the filter in a dishwasher, washing machine, tumble dryer, oven, microwave, or near a naked flame.
  • IMPORTANT: After washing please leave the filter to dry completely, at least 24 hours, before refitting.
  • To watch a short online video visit: www.dyson.com/DC39filterwash

The Dyson DC39 Looking for blockages


  • Switch ‘OFF’ and unplug before looking for blockages. Failure to do so could result in personal injury.
  • Beware of sharp objects when checking for blockages.
  • Refit all parts securely before using.
  • Clearing blockages is not covered by your warranty.
  • To access the flexible inspection hose beneath the clear bin, first remove the clear bin (see above).
  • Unscrew the two Phillips screws on the clear bin locator bracket. (Do not remove any other screws.) Remove the bracket.
  • Firmly twist the top of the flexible inspection hose away from the inlet next to the ball (do not remove the end next to the connection for the main hose).
  • Inspect for blockages.
  • Reassemble in reverse order

The Dyson DC39 Clearing Blockages – Thermal Cut-Out


  • This appliance is fitted with an automatically resetting thermal cut-out.
  • Large items may block the tools or wand inlet. If any part becomes blocked the appliance may overheat and automatically cut out.
  • Switch ‘OFF’ and unplug. Leave to cool down for 1-2 hours before checking the filter or for blockages. Do not operate the wand release catch.
  • Clear any blockage before restarting.
  • Clearing blockages is not covered by your warranty.

The Dyson DC39 Brush Bar – Clearing Obstructions


  • If your brush bar is obstructed, it may shut ‘OFF’. If this happens you will need to remove the brush bar as shown.
  • Switch ‘OFF’ and unplug before proceeding. Failure to do so could result in personal injury.
  • Remove the brush bar by using a coin to loosen the fastener marked with a padlock.
  • Beware of sharp objects when clearing obstructions.
  • Replace the brush bar and secure it by tightening the fastener. Ensure it is fixed firmly before operating.
  • Clearing brush bar obstructions is not covered by your warranty

Dyson DC39 Replacement Parts

How to Diagnose and Repair a Dyson DC39

This guide will help you identify and resolve issues with your Dyson DC39 Vacuum Cleaner.

Dyson DC39 Issues? Need Help?

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