Peaks on UR22

Hello!

I have a UR22 interface and have problems with it. When I connect my guitar to HI-Z with the gain control to 0, have peaks.

I bought the interface thomman and told them the problem, I sent it, they sent a steinberg and today I received repaired. Nope !! The ur22 still peaks, have changed a piece but nothing has changed.

My guitar is a epiphone les paul special 2, I tested with another guitar too. On a forum I was told it was because my guitar pickups much gain, but I have gain control of ur22 to 0.

Anyone have this same problem?

Thanks

–Sorry for my english, google translate–