Noritz N 069 M starts without cause

Discussion in 'Tankless Water Heater Forum' started by dad353, Mar 17, 2012.

  1. dad353

    dad353 New Member

    Messages:
    3
    Location:
    Alberta
    I had this tankless installed now for 6 years with no problem at all.
    But now for some unknown reason, to me, randomly throughout the day it starts up fires the flame then shuts off. It can do that once or in multiples of 5 at a time.
    I could understand if there is water flow but there are is no water going anywhere including leakage within the system.
    I had just completed a descaling which did nothing but clean the unit.
    My thoughts are that since no one instigates the water flow that there must be a sensor within the unit that erroneously thinks that water is flowing and starts the heating process.
    Any thoughts on this problem would be greatly appreciated.
  2. Hackney plumbing

    Hackney plumbing Homeowner

    Messages:
    1,174
    Location:
    Alabama
    Its freeze prevention may be kicking in......how cold is it there?
  3. dad353

    dad353 New Member

    Messages:
    3
    Location:
    Alberta
    This is an indoor application. Good try.
  4. Hackney plumbing

    Hackney plumbing Homeowner

    Messages:
    1,174
    Location:
    Alabama
    Sure it was a good try. Goodluck to you!
  5. Hackney plumbing

    Hackney plumbing Homeowner

    Messages:
    1,174
    Location:
    Alabama
    Do you have a remote controller connected to the unit? If not connect one and it might throw a trouble code.
  6. dad353

    dad353 New Member

    Messages:
    3
    Location:
    Alberta
    Yes the remote is connected and unfortunately, no trouble code to help.
  7. Hackney plumbing

    Hackney plumbing Homeowner

    Messages:
    1,174
    Location:
    Alabama
    I would call Noritz.
  8. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,348
    Location:
    New England
    Just to be sure, (if you have a water meter it's easier) double-check that there isn't some flow. You could have a leak somewhere.
Similar Threads: Noritz starts
Forum Title Date
Tankless Water Heater Forum Noritz N-063 tankless water heater, lose HW pressure and then no HW Jan 24, 2014
Tankless Water Heater Forum Noritz NRC 1111 Rumbles? Jan 7, 2014
Tankless Water Heater Forum Noritz Water Temperature Fluctuations May 21, 2013
Tankless Water Heater Forum further improving/automating recirc pump control with Noritz tankless Dec 18, 2012
Tankless Water Heater Forum Noritz N-069M problem Jul 29, 2012

Share This Page