If you're experiencing some problems with your water heater, there are a few things you can do. Check the water heater manual. It usually has some specific instructions on how to troubleshoot the issue. If not, you can search online for solutions.
There are also several online forums and chat rooms where you can get advice from other homeowners who have dealt with similar issues.
But the best is to call a plumbing professional for help to avoid any mishap and also for quick fixation of the issue.