I don't know where else to ask so i figured i would ask a large community of guitar players. Hopefully you guys can solve my problem.

The problem first occurred yesterday. Normally i use the amp in my room and i have it turned down to about 1 or 2 notches because it gets loud past those. I usually have the pre gain all the way up so its heavily distorted. Starting yesterday, the distortion is pretty much gone. At max it's the equivalent of a 2 or 3 previously. Also the clean is pretty much gone. I have to turn it almost all the way up before i can even hear anything.

The only difference the amp has gone through is that it was moved downstairs for about 20 minutes and then came back up into my room.

Does anybody know what the problem is and if there is any fix for it?

Thanks for any help.