Smell of Burning Carbon (Models WITHOUT Brush Control)

The most likely cause of a smell of burning, such as an accrid burnt carbon smell, is a worn out motor. A good indication of this is the post motor filter, the filter located below the bin, being blackened and having an accrid smell. To inspect/replace the motor please follow the detailed instructions below.

PLEASE NOTE: If your are in anyway unsure of any of the steps listed below. Please consult a qualified electrician and always remove the plug from the socket before commencing work.

1. Start by laying your Dyson onto it's back and using a two pence piece, turn each of the three soleplate fasteners a quarter of a turn in an anti-clockwise direction.

2. Remove the soleplate by prising it away from the cleaner head, underneath the centre soleplate fastener.

3. Using a large screwdriver carefully prise the belt from the motor shaft.

 

4. Pull the brush roll out of the cleaner head.

 

5. Lay the Dyson onto it's side and remove the internal hose. By first pulling at the point where it is connected next to the U-bend.

 

6. Then by unwinding the other end from the brush holder.

 

7. Remove the ubend from the rear of the Dyson.

 

8. Lay the Dyson onto it's side and remove the brush holder by gently rocking it from side to side whilst pulling it away from the cleaner head.

 

9. Remove the other side by using the same method.

 

10. Using a large flat screwdriver. Gently remove the two large plastic circlips holding the cleaner head in place. One on each side.

 

11. Hold the cleaner head firmly in both hands and gently open the sides to clear the cleaner head from the main body.

 

12. Carefully remove the bearing clip from the left side of the Dyson.

 

13. Then remove the bearing clip from the right side.

 

14. Remove the cyclone/bin assembly.

 

15. Remove the post motor filter lid by prising it free with a screwdriver and then remove the post motor filter. Which lies beneath the lid.

 

16. Using a Torx T15 screwdriver. Remove the 4 screws holding the upper motor cover onto the main body.

 

17. Gently pull the upper motor cover and motor housing free of the main body.

 

18. Remove the Upper motor cover by holding each side and gently spreading the sides to clear the motor housing.

 

19. Using a large flat screwdriver gently prise off the motor retaining ring.

 

20. Grasp the black fancase seal and pull the motor free of the motor housing. (This may require a considerable force)

 

21. When you have removed the motor from it's housing. Take careful note of the correct connection of the wires. Red to Brown (live wires), Black to Blue (neutral wires).

22. Remove the offset motor bearing mount and the rubber fancase seal from the old motor and fit them to the new motor.

23. When the motor is fully out of the main cleaner body examine the motor for wear or damage. Pay particular attention to the commutator (The copper segments where the carbon brushes contact the motor - red arrow). If the commutator is blackened and heavily scored the motor must be replaced. Also pay attention to the bearings on the motor. The armature shaft should turn easily with the fingers with very little resistance other than the resistance of the carbon brushes touching the commutator ring. If the bearings are stiff or make a grinding noise the motor must be replaced.

---------- REASSEMBLY ----------

24. Before refitting the motor to the motor housing. Lubricate the rubber seal with a very slight smear of vaseline to allow the motor to be manouvered into place.

 

25. When refitting the motor ensure that the offset motor bearing mount is correctly alligned so that the large protusion lines up with the large cut out of the motor housing.

The rest of the reassembly is a simple reversal of the steps listed above.