Power Windows

[MSU8003]

I have a 2001 hyundai elantra. The power windows seem to not work once in a while. I guess it started a few months back when my passengers can't open their windows, I have to do it for them. Now the windows only operate once in a while. It almost seems related to the hot weather. It will work early in the morning and then not in the afternoon. What can I do to fix this? (Hopefully it's not too expensive! Heh heh.)

Thanks.

[Hungrycat7]

Check all your relays and fuses. Make sure none of the fuses are blown and make sure the contacts on the relays are clear of debris or corossion. Just a place to start.