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GB 142 gurus...

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kcopp
kcopp Member Posts: 4,452
I have a low/ no heat call to go to in the morning.
Customer says there are getting error codes of OY, 2F and 4F..
Im looking all over... could be air bound or bad sensors.
Any thoughts so i can get a head start of making a repair?
TY, kevin

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  • Alan (California Radiant) Forbes
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    https://www.powerequipmentdirect.com/manuals/GB142Service.pdf
    See p. 22 for "OY" (also a Jewish term for when you're in trouble) and page 23 for "2F". I don't see anything for 4F.
    8.33 lbs./gal. x 60 min./hr. x 20°ΔT = 10,000 BTU's/hour

    Two btu per sq ft for degree difference for a slab
    kcopp
  • kcopp
    kcopp Member Posts: 4,452
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    Thanks.
    makes me think more so that this unit is air bound...
  • Ironman
    Ironman Member Posts: 7,400
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    All those codes are dealing with the supply temp being too high: flow problem or bad sensor.
    Bob Boan
    You can choose to do what you want, but you cannot choose the consequences.
  • kcopp
    kcopp Member Posts: 4,452
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    Turns out it was air bound. Someone had closed the little cap on top of the integrated air vent. Opened up the cap air vented out and it fired right up. The sensors were doing their job... boiler was overheating.
    Brent H.Ironman