Windows and locks wont work sometimes.
 

92' blazer with electric windows and locks.

Sometimes neither wants to work. If i close the driverside door then try it they work,if i open it they stop. Sometimes I dont have to do either. Its just started happening. The radio works fine during this issue.

most likely a spot in the wire harness going into door has a break/nick and is grounding out. if it happened regardless of door position then i would say look at the switch on the door itself.
does it affect the passenger switches when the driver side doesnt work?

Yep,nothing works at all on any door.

i would say you have a wire problem...take interior panel off and inspect the harness

I have a 97 with power windows and locks. When I first got it all the windows besides the drivers side rear opened with their own switches. After a few weeks the only switch that will open the two front and the right rear windows is the master controls on the drivers door. There wasnt any moisture or anything that got in there (that I know of) and the fuses are fine. I replaced the number 3 relay for the power windows cuz I found that there was just a piece or wire connecting the two points, but nothing has changed. Any suggestions? I can live with it but when someone wants to open a window they gotta ask me to do it,lol. Thanks for your help....