Takagi water heater leaking

Discussion in 'Tankless Water Heater Forum' started by danxp, Nov 12, 2013.

  1. danxp

    danxp New Member

    Messages:
    7
    Location:
    nj
    hi...

    tried searching and didn't find much... i have a takagi tankless water heater that was professionally installed a little less than a year ago and it is leaking... it started a slow leak about a few months ago but i thought it was the pressure relief valve... the leak slowly started getting worse and just this week as i took a closer look, the leak was coming from inside the unit...

    so it finally broke today and gave a 111 error code... apparently that means there's ignition failure... so now what?

    well, it turns out that makes sense because as i opened the water heater and removed the circuit board and disconnected and removed stuff, the leak was coming from the burner assembly... i tried removing the burner assembly but that was fruitless since i didn't want to have to tinker with all the gas parts...

    any suggestions? also, how is takagi's customer service?

    thanks very much...
  2. Dana

    Dana In the trades

    Messages:
    3,027
    Location:
    01609
    Takagi customer service is pretty good about talking home owners through diagnosis & repair, and the thing SHOULD still be under warranty, but how about calling the professional installer? The installer may warranty some of the repair labor, and should be able to diagnose & repair it more quickly.

    Water simply can't leak out of a burner assembly (there is no water in it to leak out), but can leak out of the heat exchanger directly above the burner. If it's been dripping for awhile other things could be compromised.
  3. danxp

    danxp New Member

    Messages:
    7
    Location:
    nj
    called takagi tech support and they instructed me to take a picture of the heat exchanger and send it to them to diagnose... they sent additional instructions to do this and that was extremely helpful and they told me it was most likely the heat exchanger after i sent them the pics of the affected part...

    fortunately it was covered under their standard warranty for parts but because i was outside the 1yr period, labor was not covered... anyway, they said they'll be shipping me a new heat exchanger (my shipping cost i
    might add)... i may have to call a pro to put that in... looks pretty complicated...

    one other thing they mentioned was that if my water was hard that it woud not be covered undered their standard warranty but their one-time-good-faith warranty... thought that was interesting to say the least...

    thanks for the help.
  4. lifespeed

    lifespeed Member

    Messages:
    333
    Location:
    California
    So you think they should warranty hard water problems?
  5. Reach4

    Reach4 Well-Known Member

    Messages:
    2,795
    Location:
    IL
    I could see hard water causing clogging, but how would that cause leaking? I wouldn't call replacing/fixing a leaking water heater as warrantying hard water problems, but I think you are implying you would.

    I looked at one of their warranties, and it included
    I wonder how common such a clause is. Here is another reason to not use an on-demand water heater, if they are that fragile.

    Edit:
    Would you blame the installer for installing such a product into a home where it is not a suitable choice?

    Would you blame the salesman for selling a product not suitable for its intended use? Maybe there was not a salesman making a recommendation. Suppose there was?
    Last edited: Nov 14, 2013
  6. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,313
    Location:
    New England
    All tankless or embedded coil heating systems will get some mineral deposit buildup. In a tankless, they are generally delimed annually unless you have soft water. That's harder to do on an embedded coil system in a boiler and may not be required since the delta T isn't as high, but it could be. This usually isn't an issue on the boiler side, since that water (at least shouldn't) be constantly replaced...whatever was there when initially filled, gets deposited, but from then on, no new water is added, so no more mineral buildup.
  7. lifespeed

    lifespeed Member

    Messages:
    333
    Location:
    California
    LOL, you read a lot into one sentence! No, I don't think it is a reasonable expectation for a consumer to ask the manufacturer to repair damage caused by hard water. I said nothing about the root cause of the failed heat exchanger.

    Hard water is destructive to pipes, valves, fixtures, and especially so to hot water appliances like water heaters, dishwashers and washing machines. Sometimes the damage is gradual, but it is inevitable. Hard water can destroy tank and tankless water heaters alike. It is just slower in a tank water heater due to the larger surface area.

    Tankless water heater manufacturers are very specific about descaling the heat exchanger on a schedule if the unit is supplied with hard water. If you don't want to bother, don't buy one. Just get the tank type and let the scale slowly build up in it and degrade the efficiency over time, but without catastrophic failure. At least for awhile.

    My approach was to install a water softener ahead of my tankless water heater. Works great and protects the rest of my plumbing, fixtures and appliances as well.
Similar Threads: Takagi water
Forum Title Date
Tankless Water Heater Forum Takagi tk4 no hot water issues Dec 10, 2014
Tankless Water Heater Forum Takagi4 Hot Water Problems Aug 16, 2014
Tankless Water Heater Forum Takagi TK1\Aquastar 240FX - No hot water..... Apr 2, 2014
Tankless Water Heater Forum Takagi tankless heater to supply in-floor hot water Dec 12, 2013
Tankless Water Heater Forum Takagi TK3 No hot water Mar 31, 2013

Share This Page