40 gallon Whirpool gas hot water heater burner won't stay lit.


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Old 12-12-10, 05:13 PM
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40 gallon Whirpool gas hot water heater burner won't stay lit.

Noticed my water wasn't very hot so went downstairs to check the water heater and the pilot light was out. Followed lighting directions to relight and it seemed to be back up and running in no time. However, a few hours later the water still wasn't hot. So I went back downstairs and the pilot was out again. Once again, was able to relight, but paid more attention this time. The burner went off after just a few minutes. Repeated this process several times and the same thing kept happening. One of these times the pilot would not stay lit after releasing the red reset button, but after letting it sit a few minutes it stayed on but the burner (like every other time) shut off after a few minutes,

I replaced the thermocouple 6 months to a year ago because the pilot would not stay lit after releasing the red button. The symptoms are a little different this time, in that it (more often than not) stays lit when releasing the red button, but then goes out (along with the burner) after a few minutes. Not to say it isn't the thermocouple, but just pointing out it's a little different. Any help would be greatly appreciated.
 
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Old 12-12-10, 07:51 PM
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Usually the whirlpools have a fusible link and when the water heater over heats this link blows and you cant relite. They might have changed this technology to a resettable where after the HWH cools you can relight. Usually why this happens is because of lack of air. There are fire breaks installed in these new HWH's and they get clogged. Espeacially when by a dryer or furnace. If you have a resettable then you need to vacuum the air intake. It could be something else but it sounds similar to what you are explaining. And if you had a company install a t coupler 6 months ago then it should be under warranty.

Mike NJ

Mike NJ
 
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Old 12-29-10, 03:45 PM
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If it's propane you could have reduced gas pressure due to the cold.
 
 

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