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Rinnai E-110c Error code 14

BillAllen Member Posts: 103
Customer getting this code and I don't service these but I did install it 11/2 years ago. Seems it a flow sensor but do not know what is causing it. Any ideas?


  • Jack
    Jack Member Posts: 1,045
    You can read the resistance across the sensor. Should be 12kOhms at 77*. Reverse acting, 7200 @ 100* & 23000 @ 50. If you remove the sensor and kinda toggle it back and forth it may free up and operate...for a while, but I'd have another sensor on the way.
  • BillAllen
    BillAllen Member Posts: 103
    Yea I figured that. Have installed many of these and this is my first problem with the E110C. THANKS FOR THE CLUE.
  • Jack
    Jack Member Posts: 1,045
    Look for the new one. It will have the variable speed pump
  • SWEI
    SWEI Member Posts: 7,356
    Will the 50k model include a variable speed pump?
  • Jack
    Jack Member Posts: 1,045
    Yes, both the combi and heat only
  • I've only installed one E50C and other than a few shortcomings (poor documentation, connections too close together and a 3" flue), I have been happy with it. It fits nicely in with my small boiler arsenal.
    Often wrong, never in doubt.
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