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Thread: Tankless Heater Problem

  1. #1
    DIY Junior Member MrTelco1948's Avatar
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    Jul 2010
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    Default Tankless Heater Problem

    Installed a S.E.T.S. tankless heater about 10 years ago. Even though it's supposed to do a whole house, I only have it connected to the shower. It has worked great for all this time until a few days ago. During a shower, I heard a loud pop and then had COLD water! Upon examination, the outlet pipe from the heater had blown apart at a 90 degree elbow about 4 inches from the heater. I didn't think it was possible for the water to get hot enough to melt the solder. Could it have been a faulty solder joint even though it has worked fine for 10 years and never leaked? Any thoughts?

  2. #2
    In the Trades Gary Swart's Avatar
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    Default

    You are correct in thinking water can not be heated hot enough to melt solder. The joint must have been faulty. I had a joint separate on my main supply line and shut off valve once. It wasn't 10 years old, but it was at least 3 or 4 years old.

  3. #3
    DIY Junior Member MrTelco1948's Avatar
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    Default

    Thanks for taking the time to reply Gary. I'll redo the joint and try the heater again.

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