Smoke and smells
I replaced the worn out original motor with a cheaper clone (new)....... I assumed slight smell was normal to running in. It turned to smoke and I turned it off. Commutator and brushes(?) rather a mess.
Second time, again clone from different supplier, worked fine for 10 mins then started to smell...... since I learn quick, I turned it off, stripped back to just the motor in its casing (in case there was unusual resistance from the clutch assembly or bands. Ran again, still smells and commutator arm no longer has copper colour.
Should I expect the motor to cut out before significant damage is done?
I am reluctant to get a Genuine Dyson motor until I know that it is NOT ME.