Many viewers of my site seem to be extremely interested in water heater repairs and identifying problems. While going through many old manuals I have in storage, I stumbled upon a manual from my learning days with information for beginner to expert service technicians.
The information identifies water problems, control faults, understanding the operation of controls [...]

 
What is an anode rod? This rod in its proper term is a sacrificial anode. It allows water and electrostatic charges to eat away the anode material instead of the tank. Anode rods are made of several different materials.
 
The most common material is magnesium. Some rods last the life of the tank and others [...]