After arriving to the home, the homeowner made me aware of how they did not have hot water last night. They went to take a shower, but the water never got hot or Luke warm. The homeowners have only lived here a couple of months and this is their first time having an issue with the water heater. The homeowner led me to the unit, which is a 40 gallon tanked electric heater. He made me aware that he removed the cover of the upper element and thermostat and reset the thermostat himself. I felt the, which was warm to the touch, we ran water in the kitchen sink and verified that water was hot. However, I made them aware that thermostats just don’t trip without reason. That could be over amperage, faulty thermostat, faulty wiring, or age, to name a few. Based off the data plate, the water heater was manufactured in 2005, in the 4th week. This means the water heater is 17 years old. There’s signs of rust on the cotton if the heater. I recommend replacing the unit, and did not offer repairs du