What do the numbers on a tire mean? The DOT number appears on the sidewall of all tires intended for sales in the U.S., and designates the location of manufacture, the week and year of production, and the specific tire.
Water heater anode rod or sacrificial anode is the important component part with only one purpose; to protect metal tank from corrosion. Use this article to learn how to replace the anode, installation tips, how it works, about different types and when to use each one.
Burned Out or Dryfired Elements (#119) TEST FOR BURNED OUT OR DRY FIRED ELEMENTS. When troubleshooting a residential electric water heater for incidents of either âNo Hot Waterâ or âInsufficient Hot Water,â it is always a good idea to check the thermostat settings as well as the heating element(s) themselves. To test for a burned out element, first, TURN OFF all electrical power to the water heater.