Question about Noritz 6.9 Gallon Residential Direct Vent Tankless Water Heater - N

1 Answer

My o69m flashes a 16 and says priority - Noritz 6.9 Gallon Residential Direct Vent Tankless Water Heater - N

Posted by on

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Scholar:

    An expert who has written 20 answers of more than 400 characters.

  • Expert
  • 73 Answers

The 16 error code occurs when the outlet temperature exceeds the set temperature of the unit. Typically this occurs when the unit has developed scale in the heat exchanger. I would initially recommend performing a descale on the unit to remove any scale deposits from the HEX.

Posted on Sep 01, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

I have a Rinnai RL 175 Tankless water heater. I just moved into the house two weeks ago. We have no hot water. Green priority light and beeping sound came on. Breaker also flipped on panel. Any ideas?


Usually, Breaker tripping indicates a hard short ... probably the heating element is shorted and needs replacement. Possible bad C/B but don't think so.
Good Luck! handy Henry.

Feb 14, 2017 | Rinnai Water Heaters

1 Answer

Beep codes


Get the manual for it on line and look up the beeping meaning and the reaqon for the priority lite.

May 24, 2013 | Rinnai Water Heaters

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

I have a Rinnai MC-45 US. One morning, we had no hot water & the temp on the control panel read 12. So I pushed the Priority button. We now have hot water, but the priority button is still lit. It has...


Error code 12 can sometimes be caused by a short circuit on the low voltage side of the installation. Could possibly be a fault with the controller itself which is low voltage.

Jan 31, 2011 | Rinnai Digital Remote Water Heater Control...

1 Answer

I have a Nortitz natural gas water heater, model #N-063s-1. Acouple of days ago it stopped heating the water. what can I do myself to fix this matter. Thanks, lynnatheana@hotmail.com


There are many reasons a tankless heater will stop heating water. The first thing I would look for is a flashing red light on the burner indicator. The flash break down goes as follows

continuous blinking - typically means ignition failure or the unit is overheating; look for visible water inside the unit, have your gas pressure checked, or check the flame rod/igniter for buildup of debris

three blinks - typically indicates 16 error code; typically resolved by performing a descale

4 or 5 blinks - exotic error codes; for these you should definitely contact Noritz tech support

If there is no flashing light, first check your filter for debris. If the filter is clean, your flow sensor is probably stuck. Again I'd recommend contacting Noritz tech support to help you clean the flow sensor.

Jul 31, 2010 | Noritz 6.3 Gallon Residential Tankless...

1 Answer

Sometimes the hot water just goes cold


Here are a couple things to look for:

1) flashing burner light - a flashing burner light indicates the unit is getting an error code
common error codes:
A. continuous flashing - ignition failure or abnormal combustion; look for visible water in the machine indicating a leak, check gas pressure, debris or buildup on flame rod/igniter plug, or clean unit with compressed air
B. 3 flashes - error 16, abnormal outlet water temperature; typically this code indicates you'll need to descale you unit
C. 4 or 5 flashes - exotic error codes; you should contact Noritz technical support to deal with these codes

2. If there is no flashing code, try increasing the hot water flow. In the summer time you typically use less hot water; this can result in intermittent operation of your tankless heater. Increase water flow by either: A. cleaning your showerhead and removing scale deposits B. widening your flow restrictor C. Remove your flow restrictor in the showerhead

3.If none of these resolves your problem, you probably have debris in your flow sensor. Contact Noritz technical support for a walkthrough on removing debris from a flow sensor.

Feb 18, 2010 | Noritz 6.3 Gallon Residential Tankless...

2 Answers

Wiring a smart control to a taco sr504 to a honeywell L7248.


Set tempture up some so the water will be hoter.

Mar 18, 2009 | Water Heaters

Not finding what you are looking for?
Noritz 6.9 Gallon Residential Direct Vent Tankless Water Heater - N Logo

294 people viewed this question

Ask a Question

Usually answered in minutes!

Top Noritz Water Heaters Experts

gizmonix

Level 1 Expert

13 Answers

jasbo
jasbo

Level 3 Expert

2237 Answers

Mack Baxter

Level 3 Expert

381 Answers

Are you a Noritz Water Heater Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...