Luke warm hot water
My friend just bought a house. He went to use the shower tonight and the water only ran for about a minute. When he went to get in the shower, it had luke warm water. He turned the hot all the way up with no cold, but still had luke warm water then went cold. He checked the pilot light and the burner and they are working fine. I think it might be the thermorstat sensor, but he said it looks fine. Am I correct in believing that's it?