Welcome! Here are the website rules, as well as some tips for using this forum.
Need to contact us? Visit https://heatinghelp.com/contact-us/.
Click here to Find a Contractor in your area.

Triangle Tube Challenger domestic hot water does not maintain temp

ciro13 Member Posts: 3
Per the title discussion, the Triangle Tube Challenger in my home does not maintain temperature of domestic hot water. When the hot water is running, like in the shower or when filling a bath, the temperature of the hot water will begin hot, then go cold, then it'll go hot again, eventually it'll go cold again. These periods hot and cold water will last between 30 seconds and several minutes. I want the temperature of the water to remain steady when I set the taps to run.


  • Zman
    Zman Member Posts: 7,372
    How old is the system?
    Is this a new problem?
    Pictures of boiler piping is always helpful.
    "If you can't explain it simply, you don't understand it well enough"
    Albert Einstein
  • ednelson7373
    ednelson7373 Member Posts: 8
    hello my name is Ed I am in the triangle tube tech support dept.
    please give us a call at 856 228 8881 we would glad to help you figure out the issue we are here from 8am to 5 pm Monday through Thursday and 8 to 4:30 on Friday eastern time
    thank you
    kcoppErin Holohan Haskell
  • We'd sure like to know the outcome, if you don't mind.
    Often wrong, never in doubt.
  • ciro13
    ciro13 Member Posts: 3
    Zman, Can this be a piping issue?

    System can't be older than 2015/2016 - it's been like this since we started living here in 2017.

    I'll have to see what Triangle Tube Tech Support has to say next week and I'll post an update here.
  • Is there a mixing valve on the DHW outlet. Should be - it comes with the boiler. Not saying this is the issue.
    Often wrong, never in doubt.
  • kcopp
    kcopp Member Posts: 4,007
    I have worked/ installed many of these.
    If you can post a picture that would help.
    Are you on a well or City water?
  • unclejohn
    unclejohn Member Posts: 1,759
    Talk to mister Ed. It would be great if your name was Wilbur
  • rick in Alaska
    rick in Alaska Member Posts: 1,386
    I would say the flow sensor is hanging up, but just an educated guess. Tech support will be able to figure it out though.
  • ciro13
    ciro13 Member Posts: 3
    City water. There's a mixing valve. Thanks everyone.