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Rinnai RC98HP not producing enough hot water
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JZZH
Member Posts: 11
Hi, the problem started about a month ago. There is hot water, but it is very obvious that it is not hot enough.
No error code. I had de-scaled half a year ago, and I don't see any dust build up after removing the cover. The cold water inlet filter is also clean.
When I look into the observation hole, I can see blue flame on left side, but the right side is dark. I am not sure if it is expected to have flame on both sides, so I took a video: https://drive.google.com/file/d/1n5y5LT6lJHibf_70MHM2RFZfSEPE_NqD/view?usp=sharing. You can see that when I move to the left side of the hole (which would give view of flame on the right side - if it is expected to have flame on the right side), I don't see flame.
Please advise if that is normal or what the problem is. It does not report any error code.
No error code. I had de-scaled half a year ago, and I don't see any dust build up after removing the cover. The cold water inlet filter is also clean.
When I look into the observation hole, I can see blue flame on left side, but the right side is dark. I am not sure if it is expected to have flame on both sides, so I took a video: https://drive.google.com/file/d/1n5y5LT6lJHibf_70MHM2RFZfSEPE_NqD/view?usp=sharing. You can see that when I move to the left side of the hole (which would give view of flame on the right side - if it is expected to have flame on the right side), I don't see flame.
Please advise if that is normal or what the problem is. It does not report any error code.
0
Comments
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You might take the impellor out and clean it. Sounds like maybe it isn't reading flow right and not allowing high fire. I am not familiar with that model, but you should be able to look it up to see how to get to it.
Rick
1 -
Thank you, Rick.
I looked this up:
https://www.youtube.com/watch?v=8gLRNEKqFDA&ab_channel=ThatTanklessGuy. Will study it and the Rinnai manual further and give it a try. 
1
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