i got a 9v Hpro adapter to use for my overdrive pedal, when i plugged it in it started to make a real loud noise and didnt work when i plucked any strings. now it seems to have broken my pedal all together, i tried replacing the battery and chords but it still wont work.

what do you think i sould do? should i contact them?
your pedal is ****ed.

thats why you ALWAYS check the voltage AND Amperage of the pedal and adapter.
'87 Fender Strat
Oscar Schmidt Archtop
Laney LC15R
The voltage was probably wrong and it probably fried the electronics inside the pedal.I dont think you could fix it unless your good w/electronics and schematics and stuff.
"This is gunna blow my cover but I like the FedEx driver because he's a drug dealer and he doesn't even know it"-Mitch Hedberg RIP
I'd start by looking inside for burnt out parts.

On most analog pedals voltage isn't really an issue(and not in this guys case for sure; he got a 9v adapter), some pedals sound cool on different power supplies. Going too high can burn out parts, and of course amperage could do it. I wouldn't go above 1000mA. I run 9v pedals on 1000mA 12v all the time, you just need to have a basic idea of what will start burning stuff.
I'm not very active here on UG currently.
I'm a retired Supermod off to the greener pastures of the real world.