Water Heater

Check out this video: Troubleshooting Electric Water Heaters in MINUTES ~ Step By Step

A very nice video tutorial on how you can easily identify the cause of a hot water heater failure. AFTER you establish that there is power to the hot water heater, ALL remaining tests are done with the POWER OFF to the hot water heater.

You will need a philips & slot screwdriver, as well as a digital or analog multi-meter.