Question about Noritz 6.3 Gallon Residential Tankless Water Heater - N-063S

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3 red blinks

No hot water, half the volume, unit off and 3 red blinks signal

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Sounds like you are getting an ignition failure code. Check the inside of the unit for evidence of a leaking HEX.

Posted on Jul 12, 2010

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Posted on Jan 02, 2017

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Where do I find the bypass valves for the hot water heater tank on a Jayco Eagle HT 27.5RLTS RV?


best advice is to find a Jaco distributor and talk with a service man as they have the diagrams or experience to fix the unit
look for a panel at the position out side the van where that unit is as there may be a removable section ( screws or pop rivets) that is the access to that unit
there are plenty of jayco sites around the country

May 09, 2016 | Water Water Heaters

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Should the red lights be flashing or be on steady


A solid light is what you actually want.
If you have a blinking light, the unit is unable to keep up with the flow of water.
Slowly turn on the hot water for your bathtub until the light starts to blink to find your limit. in other words your tankless heater is too small for your needs.
The 24 model is more for houses with showers or slower flow.
The 36 or higher model has 3 sets of heaters to be used with a bath, higher flow.

Jan 20, 2013 | Stiebel Eltron TEMPRA 24 Tankless Water...

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Pilot light will not automatically light when hot water is turned on


This is a great unit! Try turning the flow nob to the half way point and the flame all the way to low. Run the hot water tap and slowly turn the flame dial until you hear the unit try to light. Every house is different regarding the restrictions in the plumbing and water pressure. Once the unit tries to light that is your minimum setting. It is best to leave it there.

Apr 05, 2010 | Bosch & Tankless LP Hot Water Heater

1 Answer

I have a noritz water tankless heater and hot water stopped. Red light blinking three times. Need help.


Three flashes typically indicates the unit is overheating due to scale. I'd try a descale initially and see if that remedies the problem.

Dec 27, 2009 | Noritz 6.3 Gallon Residential Tankless...

2 Answers

1 unit intermittently shuts off and other won't ignite


if you have the exhaust run together it will not light up,, they have to be seperate,, the computer board sences the unburnt gasses and will not allow it to start,,

Jun 24, 2009 | Rheem 40 GAL ELEC TALL Water Heater 6YR SC...

1 Answer

No hot water and low pressure


Your manual will tell you what that code means and what repair must be made.

Apr 04, 2009 | Noritz 7.1 Gpm Natural Ng Gas Tankless Hot...

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My heater stoped heating water. the light is out that shows temp.my husband is in Military and i am alone. I checked circut breaker but I don't know if or where there is a circuit breaker at the box or a...


I had the same problem with the Stiebel Eltron Tempura 24. Right side unit worked (with blinking LED), but the display and left side (including LED) did not work.

This is CRITICAL. Do not take the cover off unless you have turned off circuit breakers at the circuit breaker panel AND tested that there is no power. There is a lot of voltage/ampreage here and it could be life threatening if you get shocked. Call an electrician (or a plumber) if you don't know what you are doing.

My problem was solved by resetting the safety thermal cutout switch on top of the non working unit (red single press thermistor). See this manual http://www.stiebel-eltron-usa.com/pdf/install_tempra.pdf page 8.

Jan 30, 2009 | Stiebel Eltron TEMPRA 12 Tankless Water...

2 Answers

Blinking red light,


It seams alot of people have this same problem All must get ahold of manufacturer and report this it must be there pump's thank you for useing fixya

Jan 14, 2009 | Noritz 6.3 Gallon Residential Tankless...

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