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oil control

brownie
brownie Member Posts: 1
in Thermostats and Controls
i have a lennox OF23 oil fired lo boy warm air furnace with a beckett af2 burner bcc3 control center had a honeywell 8184g burner relay right now therm calls burner starts  runs  then goes off on limit . blower does not start. loose blue low volt wire went to previous 8184m but do not know if wiring correct to either control. only 120 volt on bcc control correct can anybody help, already downloaded manual from lennox .

Comments

  • sasman
    sasman Member Posts: 32
    burner control

    who changed the controller?
  • billtwocase
    billtwocase Member Posts: 2,385
    wiring

    without pics, one would only guess what has been done. If you have a fan center, "T-T" goes there first. If it is going to the cad cell relay directly, the fan board has no idea there is a call for heat to run the blower. Pics and more info needed, for me anyway
  • EddieG
    EddieG Member Posts: 150
    Proper Operation

    When limit opens on that furnace, it is supposed to drop 24 volts coming out of board to t-stat and blower should run non stop until limit closes. If it is not doing that, something is wrong. You will need a pro.
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