hot water cools fast

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Old 03-05-10, 04:24 PM
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hot water cools fast

I recently noticed a weird trend: when I turn on the shower, it is hot first but then water starts dropping in temperature pretty quickly so that every 30 seconds or so I need to adjust the shower to raise the temperature. This started happening a few days ago -- about the time we started our kitchen remodeling when we demolished everything and, among other things, disconnected the old sink and the dishwasher. I am wondering if this has something to do with the problem. By the way, it has never happened before, i.e. unless several people were taking a shower before me for extended periods of time, temperature would not drop at all. Also, I tried raising the temp setting on the boiler. This gave the expected result: while the water would be hotter initially, it would steel get cooler. The same thing happens in all two of the three showers we have in the house, and we don't use the 3rd one. What's happening? Thanks much!
 
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Old 03-05-10, 05:10 PM
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Hot Water

How is the water heated? We need more information.
 
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Old 03-05-10, 07:40 PM
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Gas. The heater is Whirlpool model # BFG2J5040T3NOV

This site: http://www.whirlpoolwaterheaters.com...ct.aspx?id=116 states that it has a 12 year warranty, and it's only a few years old (definitely less than 12, I don't remember when we installed it but it has ANS number ending with 2004, if it means anything). Could this be covered by the warranty?
 

Last edited by ilyaz; 03-05-10 at 08:14 PM.
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Old 03-06-10, 03:54 AM
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What sort of maintenance have you done on the water heater? If your water supply is not pristine, you may need to drain the tank occasionally to rid it of crud. That could keep the tank from heating completely and uniformly. Maintenance won't be covered by warranty, and lack of maintenance will void it.
 
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Old 03-06-10, 08:40 AM
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I called Whirlpool. They asked me whether I ever drained and flushed the water heater, which I never did. The heater was installed in 2007. I have two questions:
1. Could this be the cause if the dropping temperature?
2. I looked in the manual for instructions on how to drain and flush. It requires turning gas off and then turning it back on. Since I've never done it, I am a bit nervous. I can call a plumber, of course. But is it possible to flush and drain without turning the gas off?
 
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Old 03-06-10, 08:54 AM
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You can turn the thermostat control to "vacation" setting...it should have one....
 
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