Yesterday after returning home from work I discovered my hot water is not working. When you turn on the faucet (any in the house) just a little warm water comes out and then it turns cold. I checked the fusebox. It was not tripped. I'm going to buy a multimeter today to test the fusebox. Please, any help or suggestions as to what I should do???
Sounds like the first bit of lukewarm water is just what is in the plumbing. It's warmed up by the air in your home as it sits there. The cold water after is what's sitting in the hot water heater.
With that in mind, it looks like your hot water heater is not working at all.