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.