2 Jan - phone customer support again. Sarah listens to tale of woe, agrees Dyson is dead. Offers engineer callout - full service, includes any parts needed, 65 quid. "What if it needs a new motor?" I ask. "Included," she says. Books engineer for next available slot. Tomorrow afternoon.
3 Jan - engineer calls. Replaces motor, all filters, main hose (no damage or wear, but dirty, leaves old one as a spare), bottom hose (hasn't gone yet, Madam, but it will, leaves old one as a spare) and sole plate (looking a bit battered, Madam, leaves old one, etc.). Engineer pleasant, chatty and full of helpful advice, and doesn't even charge the full 65 notes.For once, a transaction with a company that left the customer happy and with expectations not only met but exceeded by a wide margin. Very pleased - especially since I was getting ready to stump up the 300+ needed for a new one, as they are pricey but bloody effective.
Thought I'd share. No connection, etc. Dyson rocks.