Dyson DC40 Troubleshooting

If you are having problems with your Dyson DC40 Vacuum Cleaner, you are not alone. Many Dyson DC40 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 DC40

Dyson DC40 Vacuum Cleaner Problems

Below are common issues and solutions for the Dyson DC40:

The Dyson DC40 Emptying The Clear Bin

Caution:

  • Switch ‘OFF’ and unplug before emptying the clear bin.
  • Empty as soon as the dirt reaches the level of the MAX mark – do not overfill.
  • To remove the cyclone and clear the bin unit, press down on the red button at the rear of the carrying handle on the cyclone.
  • To release the dirt, press all the way down on the red button at the rear of the carrying handle on the cyclone.
  • To minimize dust/allergen contact when emptying, encase the clear bin tightly in a plastic bag and empty it.
  • Remove the clear bin carefully.
  • Seal the bag tightly, and dispose as normal.
    • To refit:
      – close the clear bin base so it clicks into place
      – push the cyclone and clear bin unit into the main body of the appliance; it will click into place
      – ensure the cyclone and clear bin unit are secure

The Dyson DC40 Cleaning The Clear Bin

Caution:

  • 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 the cyclones.
  • Clean the cyclone shroud with a dry cloth or dry brush to remove lint and dust.
    • To refit:
      – fit the cyclone shroud into the clear bin so that the silver button clicks and engages
      – close the clear bin base so it clicks into place
      – push the cyclone and clear bin unit into the main body of the appliance; it will click into place
      – ensure the cyclone and clear bin unit are secure

The Dyson DC40 Washing your filter

Caution:

  • Your appliance has two washable filters, located as shown.
  • Check and wash the filters regularly according to instructions to maintain performance.
  • Switch ‘OFF’ and unplug before checking or removing the filters.
  • The filters may require more frequent washing if vacuuming fine dust.
  • Wash with cold water only. Do not use detergents.
  • Do not put the filters in a dishwasher, washing machine, tumble dryer, oven, microwave or near an open flame.
  • To remove filter A see the ‘Wash filters’ section in this Dyson Operating Manual.
  • After washing lay the filter on its side and leave at least 24 hours to dry completely before refitting.
  • To remove filter B:
    – turn the central locking dial on the outer cover of the ball counter-clockwise until the cover is released
    – lift off the cover
    – turn the filter one-quarter counter-clockwise to release.
  • Filter B should be rinsed and tapped out until the water runs clear, then tapped out again to ensure all excess water is removed. Leave to dry completely for 24 hours.
  • It is normal for the filter in the ball to turn grey in color.
  • To refit filter B:
    – refit the filter onto the ball
    – secure the filter by turning it one-quarter turn clockwise.
  • When refitting the outer cover of the ball, keep turning the central locking dial clockwise. When it starts to click it is locked.
  • To watch a short online video visit: www.dyson.com/DC40filterwash

The Dyson DC40 Looking for blockages

Caution:

  • Switch ‘OFF’ and unplug before looking for blockages. Failure to do so could result in personal injury.
  • Look for blockages in the wand, airways, and cleaner heads.
  • To remove the base plate to access an obstruction, see ‘Base plate – disassembly/reassembly’.
  • To look for blockages in the airway between the ball and the cleaner head you will need to remove the cleaner head: see ‘Base plate – disassembly/ reassembly’.
  • Beware of sharp objects when checking for blockages.
  • Refit all parts securely before using.
  • Clearing blockages is not covered by your guarantee

The Dyson DC40 Clearing Blockages – Thermal Cut-Out

Caution:

  • 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 filters or for blockages.
  • Clearing brush bar obstructions is not covered by your warranty

The Dyson DC40 Brush Bar – Clearing Obstructions

Caution:

  • If your brush bar is obstructed, it may shut off. If this happens, you will need to remove the blockage.
  • Switch ‘OFF’ and unplug before proceeding. Failure to do so could result in personal injury.
  • Beware of sharp objects when clearing obstructions.
  • If you still cannot clear the obstruction, please follow the instructions below to remove the base plate. This gives more access to the obstruction. Alternatively, contact a Dyson expert on the Dyson Helpline or visit the website. Clearing brush bar obstructions is not covered by your warranty

The Dyson DC40 Base Plate – Disassembly/Reassembly

Caution:

  • Switch ‘OFF’ and unplug before proceeding. Failure to do so could result in personal injury.
  • Lie the appliance on its front.
  • Detach the red ‘C’ clip which is on the connection between the cleaner head and the appliance. It is quite firm, but do not pull it off roughly. Use a constant, firm pressure.
  • Pull the cleaner head away from the appliance. Use a constant, firm pressure.
  • On the cleaner head are two dials: turn each a quarter-turn counter-clockwise until it clicks.
    Put the cleaner head onto its back:
    – lift up the top edge of the base plate, so it rotates to the upright position
    – lift out.
  • Beware of sharp objects when clearing obstructions.
  • To refit the base plate:
    – fit the 3 lugs on the lower edge of the base plate into the 3 slots in the base of the cleaner head
    – swing the upper edge of the base plate down; will click into place.
  • To secure the base plate:
    – Press the base plate close to the cleaner head
    – secure the first dial by turning it a quarter-turn clockwise until it clicks and engages
    – repeat with the second dial.
  • Refit the red ‘C ‘clip onto the cleaner head. The flatter edge of the clip fits against the cleaner head. It is easier to slide one lug into its slot before the other.
  • Lie the appliance on its back.
  • Attach the cleaner head by sliding it onto the connections on the lower front part of the ball. Ensure the electrical plug on the cleaner head fits into the twin-block connection on the body of the appliance, which is directly above the airway. Push firmly: the cleaner head will click into place

The Dyson DC40 Brush Bar – Troubleshooting

Caution:

  • If the brush bar has stopped spinning, follow the instructions above on clearing obstructions. Alternatively, contact a Dyson expert on the Dyson Helpline or visit the website.
  • To watch a short online video visit: www.dyson.com/DC40brushbarmaintenance

Dyson DC40 Replacement Parts

How to Diagnose and Repair a Dyson DC40

This guide will help you identify and resolve issues with your Dyson DC40 Vacuum Cleaner.

Dyson DC40 Issues? Need Help?

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