SV14 (V11) NOT the usual pulsing.

[NikGrey]

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I have Been repairing Dyson as well as most other Vacuum Cleaners (Excluding Shark) for 8 years now, I'm in Hellesdon - Norwich. (Links Repair Shop) and I have come across a problem I have never seen before with an SV14.

This is the only place to turn in situations like this and I am thankful you are here.

I have not gotten right into the actual motor yet, I think thats the next step as I feel that this problem may be caused by a sensor that I am yet to discover - there is very little info on the web about these machines at the moment.

The machine pulses very quickly on low, less quickly on Med and I get a good half second blast on Boost.

The machine is now completely clean internally as I gave it a service, I bypass the filter Hall effect switches with a magnet rig I have made.. and in any case new filters make no difference.

Has anybody come across this issue and fixed it?
Any further idea's ??

TIA.

Nik Grey.

[MVacs]

We are starting to see this quite often now.

It is definitely a fault in the motor body as you note, we have a tea chest full of bodies that do this.

We just fit a replacement motor body.

If you do happen to identify the component within that fails, I'd be interested to know too. 

[matrixresonator]

Seem to remember reading something somewhere about a dirt sensor that fails in the body which incorrectly identifies a blockage, but like you say it's a new body.