wrote in message
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I have a 14 year old electric water heater (40 gal, 2 4500w
elements). The water temp begins to cool down significantly in the
middle of a second shower. There are only 2 people in the house.

Thermostats work - both come on and off normally depending on how I
set them and they properly apply voltage to the heating elements.
Both heating elements show 15 ohms and draw 17+ amps.

Anybody got an idea what the problem could be?


Bad dip tube.