Takagi Mobius T-M1 water leak.

[palmeroj]

After about 17 years of service my Takagi T-M1 has developed a small water leak from (I think) the heat exchanger on the left part of the heater. Wondering if anyone in the forum had any luck fixing similar issue.

Thank you.

 

[Breplum]

New models of other major brands like Navien and Noritz are just great.
In the field tear down class that Takagi gave us, I found the time and effort not worth the energy. I quit working on them when the benefit vs age/value went off the scale.

 

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[Fitter30]

Here's a exploded view and part numbers.

https://www.google.com/url?q=https://www.takagi.com/media/48192/T-M1-M199-Service-Parts.pdf&sa=U&ved=2ahUKEwiFlOfqwZeFAxVLkYkEHXr3BIkQFnoECAQQAg&usg=AOvVaw06ggA6sgEvJ51z4Jtyncch