Different types of water heater problem and when to call for professional service
Few frustrating situations can be compared to you having a hot shower in the morning and then all of sudden the water becomes chilly.
This points to one thing; your water heater has broken down and needs repairs unless you are content with the long and uncomfortable cold morning showers.
Water heaters are complicated systems, and you should not try and showcase your DIY enthusiasm with a broken down heater. You need to call the experts and let them diagnose the problem and then give you a way forward.
However, the role of these experts extends to more than the repairs as they are also needed to replace old systems and install new ones.