Default Battery temperature stuck at 30C

Hello, I have some problem. I was using dn3 rom for long time, when Resurrection Remix came out I insalled it, then I saw, that my battery temperature stucked at 30 degrees. I changed rom to another kitkat (Asylum Omni) but this didn't solve it. I don't want to change back to samsung firmware and check if that helps, maybe someone knows how to help me. I chcecked in few apps but everywhere is 30 C.
Sorry for my english.