Hi @Goalhanger,
Welcome to the Dyson Community!
This sounds like an unusual issue, and to help pinpoint the cause we'll need our Customer Care experts to take you through some further troubleshooting checks when you have your Dyson Supersonic hair dryer easily to hand. If a repair is needed, they’ll be able to discuss your options with you.
Please visit Dyson.com and click Support to get in touch with the right Dyson Customer Care team for your region.
We'll look forward to speaking with you!
Hello, i just asked my wife and she says although she cleans the filter after every use she has now cleaned every nook and cranny of the filter and carrier and on the body and she says it seems to be working ok now. So we’ll keep our fingers crossed for now,
Thank you.
Phil