Capacitors

You can.

It should be fine, the 440v one would be able to take up to, you guessed it, 440v and with only 220v in it there should be no problems... Only thing I will say is make sure the original capacitor is fully discharged before you go prodding around with it, unles you want a nasty shock.

You replied nicely with the pre-caution one has to follow while replacing capacitors. As a member I would like to thank you.

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You lost the opportunity to give answer as you are the real OP.