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Nti boiler no power all of a sudden

Hi two days ago I lost all power to my trinity nti T150 boiler , I checked the fuse it was good so I replaced the sentry 2100 controller and still nothing , any ideas??


  • STEVEusaPA
    STEVEusaPA Member Posts: 5,302
    Call a professional? There is an NTI rep on this site, maybe he can get you in touch with the right person.
  • JakeCK
    JakeCK Member Posts: 382
    Don't fire the parts cannon right off the rip. That is a very expensive way to do diagnostics.
  • Jamie Hall
    Jamie Hall Member Posts: 17,044
    Time to find out how far you are getting power. It probably wasn't the controller... check your hot feed, check the neutral, and check the ground -- all the way from the fuse or breaker box to the boiler.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • Tom_133
    Tom_133 Member Posts: 772
    Listen to Jamie, start from A and go through B,C,D... then to E. It sounds like this time you skipped a couple steps. That boiler has a few internal fuses, and if I remember correctly the sentry is powered by 24volt, so test transformer and safety loop. But it has been awhile.
    Montpelier Vt