Author Topic: DC07 died - what might the problem be? (Read 2108 times)

MartockSammy · « **on:** March 13, 2023, 01:53:17 pm »

Hi all - just joined so this is my first post & would love to tap into the collective knowledge & wisdom of all you guys!

SWMBO (aka Da Management) reports that when using our venerable DC07 Allergy yesterday it worked OK for a few moments then “died” - the motor gradually slowing then stopping completely.

When I tested it there was nil response. I’ve checked the switch - power is on both sides - so not that. Checked blockages all round = none.

So, since these are essentially simple machines I’m thinking motor: but what’s the issue? Could it be brushes? How do you tell & are they easy to replace?

If not brushes, I’m assuming it’s time for a new motor… but can anyone suggest any other cause/remedy?

Any thoughts/suggestions gratefully received!

matrixresonator · « **Reply #1 on:** March 13, 2023, 04:57:38 pm »

If theres power leaving the switch (an assuming theres negative connection through the flex) then it only leaves motor.

Brushes are cheap - https://shop.manchestervacs.co.uk/dyson-cylinder-vacuum-cleaner-spares/dc23-spare-parts/ydk-yv-motor-brushes

But persoanlly I just replace the motor - https://shop.manchestervacs.co.uk/dyson-upright-vacuum-cleaner-spares/dc33-spare-parts/dyson-motor-ydk-yv-dc04-dc07-dc14-dc27-dc33

MartockSammy · « **Reply #2 on:** March 13, 2023, 08:04:05 pm »

Thank you for your prompt reply: in the meantime I stripped it down to discover brushes worn unevenly & one was very friable - so have opted to replace. Now for the fun of getting it all back together!

macman · « **Reply #3 on:** March 14, 2023, 11:52:41 am »

Replace the motor, or just the brushes? With these motors coming in at little more than £20, it's really not worth just changing the brushes, as the commutator will normally be damaged too. Just change the whole motor, and it'll be good for another ten years or so...