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Anonymous Posted on Dec 10, 2011

What is error code 71 on a Noritz heater. It shuts off my heater

Our heater systems just shuts off and has an error code of 71. The pwer did not go out as that has caused it to error also so we have a surge protector now.

5 Related Answers

Anonymous

  • 2 Answers
  • Posted on May 12, 2009

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.

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snap101

snap101

  • 117 Answers
  • Posted on Jul 28, 2009

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 [email protected]

Anonymous

  • 2 Answers
  • Posted on Dec 09, 2009

SOURCE: Noritz Tankless error code 16

The trick with these hot water heaters is to keep the filter screen clean and flush the system with CLR periodically. Code 11 is ignition error. Is your gas valve turned on?

Anonymous

  • 73 Answers
  • Posted on Jul 15, 2010

SOURCE: error code 14 shows on the remote for a noritz

This means the thermal fuse has broken and needs replacement. The thermal fuse is a white cord which wraps around the heat exchanger. It typically breaks if the unit is excessively dirty and sooted. Before the fuse is replaced you should make sure the unit is cleaned with compressed air and descaled.

Anonymous

  • 43501 Answers
  • Posted on Dec 21, 2010

SOURCE: have hot water for a

Hi,
The problem may be the flame sensor or the control.....
Check that the flame sensor is clean and also that there is a good ground from the burner to the control....make sure that the wiring to the unit is correct polarity, and then the ground is hooked properly also...
Is it flashing a code and if so, check what the code means....

heatman101

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Noritz: Tankless Water Heater. I have an error code 99 on my Noritz tankless. How do l reset it please?

Remove the bird's nest in the flue.

The 10, 59, 90 and 99 error codes indicate that a Noritz heater has experienced a combustion abnormality. In most cases, it is the result of an obstruction in the heater's flue. Examine the flue to see if it is blocked by debris and clean if necessary.

How To Resolve The Seven Most Common Noritz Tankless ...

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Nov 16, 2015 - This error code involves a breakdown in communication between two tankless water heaters using the Quick Connect Cord. It can occur when more ...

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Error code 90 and 99 ... Action: Check for the obstructed venting, improper gas burning (flame shape and color change). Ensure the water heater gets the ...

Error Codes for a Noritz Water Heater - Waterheatertimer.org

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1answer

My noritz water heater: error code: 11. It is an N-0931m. Thanks

Code 11 is ignition failure.
Ensure that your gas is turned on.
Start by checking the vent system to ensure there is no obstruction or separation in the vent system.
Second I would recommend flushing the water heater with vinegar or Rectorseal Calci-Free. Calcium and scale build up in tankless water heaters can cause several failures that are not directly related to the specific code displayed on the heater.
If the problem persist I would look for a plumber that is familiar with tankless water heaters.
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I have a Noritz tankless water heater (model n-132m). I am getting an error code of 71. What does that mean?

The Noritz Manual shows fixed for the following error codes:
11
21
90
99
For all other codes this is the recommendation:
Contact our sales agent if:
• Any other error code appears.
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Error 71

EC 71 usually means you are using a battery backup that doesn't produce a pure sine wave. OR you recently had a power outage and it shorted the circuit board. if you have a battery backup try unplugging that and see if it works okay. If not, just call Noritz for a replacement c/b.
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1answer

Noritz Boiler NH-1501-DV-NG Shuts off at radom times with blinking error code 123

error code 123 is a flame rod sensor problem. Chances are the flame rod is sending a weak signal to the control unit. Check for a loose flame rod electrical connector. Peek in the flame inspection windows to ensure there is a proper flame on that side of the burner. If non of the above then try removing the flame rod and cleaning with 400 grit sandpaper or replace it with part order # SKC7448 (called an Ignition plug ELV & Packing EHK SETV)
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1answer

What is error code 043 on NORITZ tankless heater?

There is no error 43 on a NR71. There is a 73 error code which is caused by disconnecting jumper cables while the power is on.
1helpful
1answer

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.
11helpful
2answers

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.
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