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Low water cut off

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IrishJohn
IrishJohn Member Posts: 1
Why would my low water indicator turn on , and shut off the boiler, when the water level is not low?  I drained the boiler and refilled it to 85% on the sight glass but the low water light still comes on.

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  • STEAM DOCTOR
    STEAM DOCTOR Member Posts: 2,012
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    Which LWCO

    What is the make and modal of the LWCO? If this is the hydrolevel cycleguard then the shutting of might be due to an internal test not a low water condition.
  • nicholas bonham-carter
    nicholas bonham-carter Member Posts: 8,578
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    Lwco cleaned?

    When you had your boiler serviced/inspected last winter, did the technician clean the probe of the lwco?

    Is there a reset switch on the lwco itself. Have you tried it?

    Is the red light on the lwco or on the boiler control?--nbc
  • JimZ
    JimZ Member Posts: 8
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    re:lwco

    The Lwco probe is dirty or defective, and needs to be serviced.
  • JimZ
    JimZ Member Posts: 8
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    re:lwco

    The Lwco probe is dirty or defective, and needs to be serviced.
  • JimZ
    JimZ Member Posts: 8
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    re:lwco

    The Lwco probe is dirty or defective, and needs to be serviced.
This discussion has been closed.