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

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Adjusting manifold pressure on noritz tankless water heater

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6 Suggested Answers

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

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Posted on Jan 02, 2017

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SOURCE: Noritz tankless water heater not producing hot water

I called Noritz error code 16 is a overheat problem. Noritz say's to flush your coil with vinegar or CLR.
Use a small pump to recirculate the CLR or vinegar through the system for 45 minutes and flush with fresh water. This worked for me.

Posted on May 12, 2009

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  • 6 Answers

SOURCE: Noritz tankless water heater/dishwasher not hot enough to clean

You are doing everything you can. Your dishwasher probably isn't drawing enough hot water to activate the unit so opening the faucet and flowing more water will activate the unit. Just try to adjust the flow from the faucet to a point it, plus the draw from the dishwasher, will activate the unit. This will come with trial and error as I am sure you have already experienced. Also, open the dishwasher when it does get filled and check the water temperature. You might have the unit set at a low discharge temperature. Do you have a touchpad to control the water temperature adjustment?

Posted on Jun 10, 2009

senor8
  • 73 Answers

SOURCE: what is error code 59 on a noritz tankless water

The 59 code is typically caused by insufficient gas supply to the unit. It can also be caused by obstructed exhaust flow, stuck exhaust damper (located directly on top of the unit's exhaust), insufficient makeup air, or improperly installed venting (i.e. too long or too many elbows).

I would recommend initially checking the incoming gas pressure at the gas connection on the unit. The gas pressure should not drop below 5" water column for a natural gas unit, 8" for a propane system (the unit need to be operating at its maximum output).

Posted on Aug 14, 2009

senor8
  • 73 Answers

SOURCE: Water Heater Won't Fire up

There are a few things you'll want to check:
1) make sure you have 120VAC at the outlet
2) measure voltage across the blue/white and black/white wires connected to the gfi (black box inside the unit on the bottom left or right hand side). You should read roughly 100 VAC on both sides. If you don't read voltage on the black/white wire pair, then you gfi is tripped. Look for moisture that might be shorting the gfi.
3) If the GFI checks out ok, you probably have debris clogging your flow sensor

Posted on Aug 15, 2009

senor8
  • 73 Answers

SOURCE: getting error code 16. what does it mean and what

a 16 error code is typically caused by scale formation. I'd recommend performing a descale on the heater.

Posted on Jul 12, 2010

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My Noritz N-0751 M-DV makes a loud vibrating noise when I first turn on the hot water. I was advised to flush the system and did but the noise is still there


This sounds like "water hammer"
You can fix this by adding an arrester to the water line. here is a link to what they look like and how they work http://www.plumbingsupply.com/waterhammerarresters.html

You may want to check you water pressure and see if its over 80 psi.
If so then your regulator needs to be adjusted or replaced. If you home does not have a regulator and the city has upped the pressure then you will need to install one. water hammer will break pipes over time and can damage that nice water heater you have.

Jan 10, 2013 | Noritz Residential Heaters Tankless Water...

1 Answer

How to descale a noritz tankless water heater


1) Copy following links for general descaling resources for Tankless:
http://waterheatertimer.org/Troubleshoot-Rheem-Tankless-water-heater.html#de-lime

2) Add a comment with what you discover

Jan 04, 2013 | Noritz 6.3 Gallon Residential Tankless...

1 Answer

Vibrating when the heater starts to heat water


Things to Check:

1. incoming gas pressure (minimum 5" when unit firing)
2. Make sure damper on top of unit isn't sticking
3. check vent length and #elbows versus installation manual specs
4. if above 2000', disconnect high elevation termination

If these all check out, you'll probably need to do a manifold adjustment. Call Noritz for assitance on this.

Apr 09, 2011 | NORITZ Natural Gas Tankless Water Heater...

1 Answer

The Noritz HW Heater has been tripping out some (usually whenever the shower is running, and someone turns on cold water). LED flashing three times. Any Ideas


This is probably a 16 error code. This code indicates the outlet water spiked above the set temperature for an extended period. It usually means the heater needs to be descaled or the manifold pressures need to be adjusted.

Mar 10, 2011 | Noritz 6.3 Gallon Residential Tankless...

1 Answer

I have a Model N-069M and i get a flashing code 16. I just had the unit flushed two days ago and i still get the same code. thanks for any help


I feel your pain. I am experiencing the same issue which started about 3 weeks ago. First it happened twice that first week and we discounted it. Now that my heater has been flushed the same issue is occuring. I called Noritz 3-4 times now and they are saying that I may have high manollowifold pressure and should have that checked.

FollowUp: Plumber determined my Natural Gas inlet line was too small. He Tee'd off before my manifold to other appliances and fed with a 3/4 line. Issue resolved and it has been trouble free since. (Updated 2/2017)

Feb 12, 2011 | Noritz 6.9 Gallon Residential Tankless...

1 Answer

Noritz tankless gas water heater. Hot water pressure is low. Unit does not "click" on when hot water is opened. No hot water.


Hi,
The unit is plugged up with mineral buildup from the water going through it... it will need to be cleaned internally....this is done by running an acid solution through it to clean out the mineral buildup...

Then it will work again...

heatman101

Feb 02, 2011 | Noritz 7.1 Gpm Natural Ng Gas Tankless Hot...

1 Answer

WHAT SIZE HOLE IN JET ON HOT WATER HEATER TO CHANGE FROM NATURAL GAS TO LP GAS


That doesnt work with these units they are manufactured gas specific. The manifold plate would need to be changed as well as notification to Noritz to have a new serial # issued. PC board reprogram required, etc. Buy a natural gas or LP model.

Apr 27, 2010 | Noritz 7.1 Gpm Natural Ng Gas Tankless Hot...

1 Answer

Noritz tankless water heater/dishwasher not hot enough to clean


You are doing everything you can. Your dishwasher probably isn't drawing enough hot water to activate the unit so opening the faucet and flowing more water will activate the unit. Just try to adjust the flow from the faucet to a point it, plus the draw from the dishwasher, will activate the unit. This will come with trial and error as I am sure you have already experienced. Also, open the dishwasher when it does get filled and check the water temperature. You might have the unit set at a low discharge temperature. Do you have a touchpad to control the water temperature adjustment?

Feb 17, 2009 | Noritz 7.1 Gpm Natural Ng Gas Tankless Hot...

2 Answers

Noritz tankless water heater not producing hot water


I called Noritz error code 16 is a overheat problem. Noritz say's to flush your coil with vinegar or CLR.
Use a small pump to recirculate the CLR or vinegar through the system for 45 minutes and flush with fresh water. This worked for me.

Jan 04, 2009 | Noritz 6.9 Gallon Residential Direct Vent...

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