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R8184G Honeywell relay

HeatingHelp Administrator Posts: 650
This discussion was created from comments split from: Beckett AFG Oil Burner.


  • Fitz109
    Fitz109 Member Posts: 2
    edited February 2021
    I have an oil burner with a R8184G Honeywell relay. I have replaced this relay about 4 times over the years and at about $$$ a pop it gets quite expensive. There are not too many components to the unit and since the same thing happens to every unit there must be one thing on the circuit board that goes bad and should be able to be replaced. The symptoms are( The burner starts up, it runs for about 5 munits then shuts down. I hit the reset button. It starts up and does the same thing again ) I replace the unit and it runs fine. Does anyone know how I can repair these units?
  • STEVEusaPA
    STEVEusaPA Member Posts: 6,505
    First of all you should start your own thread. Throw it in the trash and use a modern primary control. Your problem is not with the control but elsewhere.
    Heat (back pressure/drafting) due to a dirty burner/heat exchanger/clogged venting, improper draft, bad/no ground, or failing neutral is more likely your problem.

    There was an error rendering this rich post.

    Robert O'BrienSuperTech
  • neilc
    neilc Member Posts: 2,707
    I'm gonna paraphrase something someone else here says,
    "there is something else there, that probably is far less expensive, that needs checking, cleaning, or replacing,"
    you need to get someone out to properly diagnose your issue,
    stop pushing the reset button, and tell your tech how many times you have,
    known to beat dead horses
  • Fitz109
    Fitz109 Member Posts: 2
    Thanks for the information .If you know the name or the part number for the replacement controller I would appreciate it. Thanks again for your help.
  • Erin Holohan Haskell
    Erin Holohan Haskell Member, Moderator, Administrator Posts: 2,324
    I've moved this to its own discussion here. Thanks.


  • Steamhead
    Steamhead Member Posts: 16,888
    Fitz109 said:

    Thanks for the information .If you know the name or the part number for the replacement controller I would appreciate it. Thanks again for your help.

    That depends on what equipment the burner is used on. Where are you located?
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
  • Jamie Hall
    Jamie Hall Member Posts: 23,426
    As @neilc said, you're looking in the wrong place. Or, as someone else said, one of the definitions of insanity is doing the same thing over and over and expecting a different result.

    Bluntly, you are assuming that every circuit board you have tried has exactly the same component failure. I'm not going to say that this sort of thing never happens -- but it's sufficiently rare that perhaps it would be wise to attempt to determine what -- external to the board -- is related to that component and is overstressing it, causing it to fail.

    Without knowing the specific component on the board which is failing, or what it is supposed to do, or what it is hooked up to, it would be impossible for me to say where to start looking -- but you have it to hand, so you don't have that handicap.
    Br. Jamie, osb
    Building superintendent/caretaker, 7200 sq. ft. historic house museum with dependencies in New England
  • SuperTech
    SuperTech Member Posts: 2,184
    Honeywell and Carlin both make primary controls that can be used on any oil burner. I'm with Steve, I don't like the R8184G. But it's very unusual to have to replace one that frequently,  you have another problem that may be causing you to think that the control has failed.  As noted by others, there are many variables that need to be considered.  I would consider calling a professional who is familiar with oil burning systems.  A good one will do much more than change parts, he will make sure that the system is safe,  reliable and as efficient as possible.