De aerator leaking water.

nibs

Rinnai E50 combo de aerator leaking water out of the top, there is no cap on the top, and likely never was one since new, 2 questions.
1) should it leak out of top
2) Is the original likely to have metric threads and can I replace it with a non factory part.
would the lack of a cap be a cause of the problem. stem for the missing cap is rusted.
Combi boiler has been in service for about 5 years, so it has been leaking for some time.

nibs

We really do need a little help, first should there be water coming out of the top of the de aerator?

Mad Dog_2

Rinnai tech support.  Mad Dog 🐕 

retiredguy

Geeeeeze, I thought that you were asking a question about a real Deaerator that you would see in a commercial/industrial boiler plant.

neilc

nibs said:

We really do need a little help, first should there be water coming out of the top of the de aerator?

No

nibs

Thank you Nielc, that is of course what we expected, so the second part of the question, is there any reason we cannot swap the de aerator for a similar sized one that is not a Rinnai product, as Rinnai is out of stock.

neilc

an air vent is an air vent,
as long as threads match, and it physically fits, , ,

I guess if you're still in warrantee, I would get written blessings from Rinnai first