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Thread: Hot water insufficient

  1. #1
    DIY Junior Member 123peanut's Avatar
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    Default Hot water insufficient

    My son is having a problem getting enough hot water. He has an older gas water heater that had been working fine until a couple of weeks ago, could not get enough hot water without turning the temperature control all the way up. I'm thinking it may be the thermocouple ? I had a similar problem a few years ago but it turned out to be a leak in the hot water line under the slab. I have also had the thermocouple problem as well.

  2. #2
    Master Plumber Redwood's Avatar
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    It's not a thermocouple...

    It could be another slab leak is the water heater running almost constantly even when hot water is not being used?

    it could be a bad t-stat as well

  3. #3
    Retired Defense Industry Engineer jadnashua's Avatar
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    What is the temperature of the water when first used? Is this electric or gas? If it starts out okay and quickly cools off, it could be cross-over - the dip tube could be broken up and essentially no-existent. How old is the unit?
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  4. #4
    Master Plumber Redwood's Avatar
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    Could be a bunch of stuff...
    But not the thermocouple...

  5. #5
    DIY Junior Member 123peanut's Avatar
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    Default

    Thanks for all the suggestions. Whatever the problem was, it has stabilized and he does not want to pay someone at this point to inspect it.

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