On Friday, April 30, 2004 5:30:47 AM UTC+5:30, Bob S. wrote:
An elderly neighbor claims she has a water heater problem because she
has a very limited amount of hot water available for use. I said I
would check on it for her and here's what I did/didn't find:

1. It's an electric 40 gal. water heater with upper & lower 4500w
elements.
2. Both heating elements continuity checked ok with one lead at a time
disconnected.
3. The thermostats are 90-150 degrees and both set at 140.
4. With the hot water running, the lower thermostat & element kicked
in within a few seconds.
5. With the water still running for a minute or two, the top element
kicked in while the bottom one turned off.
6. After another minute or two the water went lukewarm.
7. During the reheat process the above sequence reversed - top first,
then bottom.

Assuming that the process was correct and everything working, I
thought of sediment in the tank. I hooked up a hose to the drain
faucet and ran it into a bucket. The water was full force and clear.

I asked her if this was a new or old problem. She said the tank was
about 10 years old and had worked fine until a month ago.

I'm stumped. Any other thoughts?

Bob

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