Following ongoing problems with my dehumidifier (put to one side for now) I was doing the "hoovering" (well, "Vaxing" :) ) earlier. It's a 4 year old bagless Vax, and I keep the motor filters clean.
About 3 minutes in, there's a distinct electrical motor overheating smell. I stopped immediately, and checked and recleaned the filter - which came out grey, not the usual black - so not that heavily clogged.
I ran the cleaner without the dust cylinder, so could feel/smell the motor working directly. That seems fine - no smell after running for a minute.
So I'm hoping the filter was somehow super clogged.
But when SWMBO asked how long we'd had the thing, I remembered we got it the same week as the dehumidifier ....
My dad used to say of such things "there must be something in the air". Like the time we had a car which was behaving oddly. Turned out to be the condenser ... the reason it was notable is my dad said in 20 years he'd never changed a condenser. After that we probably had 4 or 5 in a few months.
(See also fluorescent tubes ....)