Fan Sticking In Oven...

[ennersdale]

Is there anyway I can stop the fan sticking in my oven?
Once it's turning, it's absolutely fine, but it usually needs a poke to get it going.

I don't want to change it - basically because I can't! But I thought IF I could pull the oven out & take the back off (assuming I can find a screw-driver!!) could I do anything with the fan then?
Is it really that simple?

I haven't got anyone who can help so it may take a while!!!

[Gizmonster]

I'm no expert, but my first port of call would be to use the trusty WD40.
Most cans usually come with a straw, so you can aim your squirt quite accurately.
Hopefully you'll be able to get to the spindle of the fan, about which it rotates, and get a decent squirt in, without having to dismantle it. Give the fan a quick push round with your hand and repeat once or twice more. Leave it a while (maybe overnight) and see how it goes when you next switch it on :)

(I've noticed that you said it turns fine, once it's actually going round, so I'll assume there's nothing physically blocking its rotation).