Rinnai Tankless Water Heater Error Code 79

3,019 Views | 1 Replies | Last: 2 yr ago by barnacle bob
Dr.Rumack
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Anyone? Guy from HVAC company said we have a water leak on the incoming side. Unlikely as we would see that. From my basic YouTube search it would seem to be a leak sensor that's faulty.
Dr.Rumack
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Turns out the original installer missed the condensate line that we now need plumbed to a sump pump.

I'm thinking of dropping a line into a plastic cup and checking on that every once in awhile instead.
barnacle bob
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AG
The cup is not a long term solution, and that is a pretty big miss by the installer.

My condensate line froze last winter and caused a back up. I cut the line and had it collect in a small bucket. I was generating about a gallon a week.

Different maker so your unit might generate less, just wanted to provide a data point.

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