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No heat

Changed a zone valve then boiler won't fire unless tester arcs across to anything metal


  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
    Time to call competent pro.

    There was an error rendering this rich post.

  • Jamie Hall
    Jamie Hall Member Posts: 23,454
    This ^^^. Something is miswired -- but if a tester arcing across to metal is the way you are searchng for the problem, you stand a good chance of doing terminal damage to some very expensive electronics.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • HomerJSmith
    HomerJSmith Member Posts: 2,468
    edited March 2022
    A change from what kind of valve to what kind? I don't know what you mean. A little more information, forthcoming? A pic of your valve wiring, please.
    rick in Alaska