TK-1S water heater problems

Discussion in 'Tankless Water Heater Forum' started by rogsen, Jul 26, 2010.

  1. rogsen

    rogsen New Member

    Jul 26, 2010
    Vancouver, BC
    I have a very peculiar problem with my tankless water heater manufactured by a very well known company with a Japanese name. I can not find anybody that will service it or let's put it this way I can not find any trained technician that will tackle the job. I do need the heat exchanger cleaned, the unit is the Takagi TK-1S The manufacturer was so kind to troubleshoot the problem over the phone and it was determined that the heat exchanger needs to be flushed/cleaned but the catch is that the manufacturer does not have any training available in place and claims that any body that is a licensed gas fitter can do it. Well I can not find any body and they can not find anybody on the west coast of Canada. They will not even share the service manual so I can not do it myself, again they claim that any gas fitter can do it. The heater is 2 years old and I live in a big city on the west coast of Canada. In the mean time I do not have any hot water and I have to manually reset the power in order to have hot water when I need it. Called many times the manufacturer head office in California but they dumped the responsability to the Canadian branch which in terms claimed that can not do anything but troubleshoot the problem....and nothing else. Just going in circles. Can anybody help?
  2. Doherty Plumbing

    Doherty Plumbing Journeyman & Gas Fitter

    Jun 22, 2009
    Red Seal Journeyman Plumber & Licensed Gas Fitter
    Penticton, BC
    I'll drive up from Penticton and fix it for you!

    Would cost you about $2,000 though :p

    If you have the iso-valve kit installed on the unit all you need is a bucket, a pump, some water, and something midly accidic like vinegar, and about 20 minutes.
    Last edited: Jul 26, 2010
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  4. Redwood

    Redwood Master Plumber

    Dec 15, 2007
    Service Plumber
    Can you post a picture of the valves on the bottom of the unit.

    We can tell you if you have the isolation valves installed.
  5. thepipe

    thepipe New Member

    Feb 26, 2011
    Millville, New Jersey
    What is the solution to this? I have the same unit and also need to do this flush. What do I need to do?
  6. smithcha100

    smithcha100 New Member

    Jan 24, 2014
    We have the booklet on this but the system was already installed when we bought the house. How do I flush the system?
  7. Dana

    Dana In the trades

    Jan 14, 2009
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