Question about Noritz N-069M-DV, N-084M, and N-084M-DV Pipe Cover

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Noritz N-069M DV CA constantlyfreezes below 10C out of ideas and may gobc to tank any ideas

As the title says the war heater constantly frezes below -10C it is installed indoors.I had this problem for about 9 years he first time with the rep's help it was decided to replace unit and reposition unit further indoors.Same problem freezes bursts the valve water leaks everywhere. Cold air seems to be coming in thinking of installing Z vent with backflow damper one at the exit and one closer to the exhaust and wrapping the venting with heating coil. Is it doable, recommendable? Noritz has tried but no luck nobody else wants to touch it. Exhausted, exasperated and fed up any last ideas before I throw this wonderful machine for freeze free zones in the trash.

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  • bobalix Jan 02, 2014

    Hi Rino Amoruso, I want to help you with your problem, but I need more information from you. Can you please add details in the comment box?
    Are the exhaust and intake both vented to the outside?

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5 Suggested Answers

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Posted on Jan 02, 2017

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snap101
  • 117 Answers

SOURCE: leaking noritz water heater

Check your water pressure and the diagnostic codes on the controller to see if there is computer failure or another problem with the unit. send me an e mail i might be able to help im a nortiz certified service tech scott@bridgeplumbing.net

Posted on Jul 28, 2009

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SOURCE: I have a new Noritz N-069M and need to have it

Black gas pipe is definitely the best,

PG&E will likely have a list of qualified contractors they will be happy to share with you.

Posted on Nov 06, 2009

  • 1 Answer

SOURCE: I have a noritz n-069m-dv. it is coming up with a

I had the same fault code. Noritz told me it was a Bypass Control valve that was blocked from shutting all the way. It is located inside the unit on the bottom right there is a small motor with two wires attached to the bottom of the valve... these wires could possibly be not contacting... I resolved the problem by tapping somewhat strong on the valve with a hammer with a type of punch... i was lucky the tapping unstuck the valve.... i would reccomend if you can't resolve tis simply get a tech who knows how to work on this... there are two gears inside that are keyed by marks on them... be sure that they go back right if you dissasembe this valve. Good Luck...

Posted on Jan 08, 2010

senor8
  • 73 Answers

SOURCE: noritz tank less propane water heater, no out going pressure

There's a filter on the cold water side of the unit. You'll notice a black, plastic, cylindrical component directly below the unit on the cold water line pointing to the left. If you shut of your water and unscrew that cap, there will be a filter attached to the other end.

If the filter is clean, I'd recommend calling tech support for help. You might have an error code.

Posted on Aug 01, 2010

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1 Answer

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It is not very hard, you can contact Noritz directly or a local distibutor to get a LP gas valve and change it out with the natural gas valve. It takes about 10-20 minutes. just make sure you check for leaks before starting it back up.

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I opend Drain Plug on my Noritz Unit N-069M and didn't find filter on it. Where I can buy that filter?


The filter is frequently stuck in the filter hole on that model. Look for a black plastic washer with a circular hole in the center; that's the bottom of the filter. You can remove it with a screw driver. Put the screw driver in the circular hole, turn it at an angle, and use it as a lever to wrench the filter out.

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Got a noritz elvkoo3 heater shuts off and i get a code 90


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Noritz Tankless gas water heater making load roar when the Hot water is turn on


Sounds like gas pressure is too high..not set properly or exchanger is clogged. Best to get technician out there for this one. Could be dangerous

Apr 08, 2010 | Noritz N-069M-DV, N-084M, and N-084M-DV...

1 Answer

I have a noritz n-069m-dv. it is coming up with a trouble code 66. Any ideas?


I had the same fault code. Noritz told me it was a Bypass Control valve that was blocked from shutting all the way. It is located inside the unit on the bottom right there is a small motor with two wires attached to the bottom of the valve... these wires could possibly be not contacting... I resolved the problem by tapping somewhat strong on the valve with a hammer with a type of punch... i was lucky the tapping unstuck the valve.... i would reccomend if you can't resolve tis simply get a tech who knows how to work on this... there are two gears inside that are keyed by marks on them... be sure that they go back right if you dissasembe this valve. Good Luck...

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2 Answers

Noritz 069 error 11


error code 11 is an ignition problem. make sure your gas pipe is sized properly, if your on propane check your tank and make sure it's not low or when it's running take the cover off and look in the flame window and make sure it's an even flame if not you probably have a gas control valve problem

Aug 06, 2009 | Noritz N-069M-DV, N-084M, and N-084M-DV...

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