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Author:
mark (LA)
I have a takagi tk2 that is blowing the 5A 125v fuses on the computer board and now its blowing the 5a 250v on the units fuse box next to the gfic, it blows the fuses on the computer board as soon as the igniter tries to initiate. I had a code 11 so I replaced the igniter module and also the computer board still having the same issuses. I checked the transformer on the board and it shows 30.42 volts. I called takagi support and they're not giving me much help. Also checked high heat fuse and looked for frayed wires and mud dawber nest, the inside of the unit is as clean as the day it was made.
Any help would be greatly appreciated, thanks Mark
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Author:
PlumberLoren (CA)
What is the fuse size and wire size on your panel for your home? Maybe you should call an electrician for help.
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Author:
mark (LA)
its the fuses in the tankless water heater
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Author:
PlumberLoren (CA)
I am saying that if the source of your power wires are too small, it will over heat and blow the fuse inside your Takagi.
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Author:
Plumberpalmer (MA)
Most likely cause is the heat exchanger is leaking causing a short. I have replaced at least 30 heat exchangers on the TK2?units they are notorious for leaking.
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Author:
stuckinlodi (MO)
The heat exchanger can overheat due to limescale accumulation and that will cause a leak.
Edited 1 times.
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