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Boiler Tripping

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joe143
joe143 Member Posts: 23
in Oil Heating
Hello Folks- Wondering if anyone would know why boiler trips when oil tank goes below Half. I would need to bleed it to restart.

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  • mattmia2
    mattmia2 Member Posts: 9,680
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    air leak somewhere
    joe143
  • EBEBRATT-Ed
    EBEBRATT-Ed Member Posts: 15,550
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    Don't know what kind of set up you have I am assuming and indoor tank. If the oil level in the tank is above the burner pump you have gravity feed. If the oil level is below the pump you have a suction lift feed.

    With suction lift every fitting has to be absolutely airtight or it will suck in a little air and the pump will lose it's prime.
    joe143
  • CTETeach
    CTETeach Member Posts: 7
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    Does the oil line come off the top of the tank? If so maybe the line isn't into the tank deep enough. So, at 1/2 at tank the line stars sucking air not oil. I've seen this quite a few times.
  • pecmsg
    pecmsg Member Posts: 4,866
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    joe143 said:

    Hello Folks- Wondering if anyone would know why boiler trips when oil tank goes below Half. I would need to bleed it to restart.

    After you bleed it, it runs normally?

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