Hey @scart57
If you’ve checked off everything on this post, Cordless - Pulsing noise and the machine is still cutting out, I’d suggest visiting their online help.
If it’s anything like the support for the later models, they have a bunch of self led diagnostics. These have helped us in the past.
Good luck.
Pete.
It could be a battery connection which is an easy fix if so. Or as @WoodenMan attached the link, it could be a blockage or a dirty filter blockage. How long have you had your vacuum?
I've had it for about 7 or 8 years...no excessive use, totally cleaned after every use....
If it’s not a blockage and is cutting out / turning off, it could be general wear and tear of the battery or that of the charger.
Charging cables, connections and batteries could degrade over that length of time.
@scart57 what did the online help say?
Good day @scart57,
Thank you for contacting Dyson Community.
I am sorry to hear about the power issue with your DC35
We recommend completing the below troubleshooting steps.
Before your machine cuts out, does it make a pulsating sound like the one in this video?
Pulsating cordless machine
Cleaning your filters
If, after completing the above checks, the problem with your cordless machine is still present or your machine is not pulsating, please contact customer support to further troubleshoot the issue. Simply use the guides and manual link home the community homepage, choosing the ‘Support’ and ‘Contact Us’ option.
Thanks.