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Old 03-09-2011, 05:53 AM   #1
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Tankless water unit issue


I have a Noritz (model n-069m-ca) and every few days or so when taking a shower the hot water stops flowing. When I go to my tankless, the controller is flashing (no error code, just number 16 flashing for heat setting)

I have to power it off then on again, then it works fine.

ideas?

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Old 03-09-2011, 09:04 AM   #2
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Tankless water unit issue


Having taken a look at the manual, http://www.noritz.com/u/installation_manual__n_063s_od_n_069m_od.pdf,
I figure it could be a clogged water drain valve (p. 20). There are instructions in the link which tell you how to fix the problem.

Let us know how you get on.

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Old 03-09-2011, 10:40 AM   #3
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Tankless water unit issue


thanks for the info. I did what was described on page 20, although mine did not have a filter/packing. It only had a rubber washer and the plug itself. There was one big plug and a small skinny one. They seemed very clean. I included a photo.

We'll see if it did anything.

It looks like I already have the isolator valve kit too
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Tankless water unit issue-screenshot029.jpg  

Last edited by fjacky; 03-09-2011 at 10:58 AM.
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Old 03-09-2011, 01:07 PM   #4
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Tankless water unit issue


I think I'll try this too.

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