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Ideal Logic - No water flow Lockout

Discussion in 'Plumbing and Central Heating' started by SkipFeeney, 5 Jun 2020.

  1. SkipFeeney

    SkipFeeney

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    Hi All,

    I recently moved into a new house and after a week we are getting the error message "No Water Flow Lockout" on an Ideal Logic Plus Combi.

    I have checked the pressure and that looks ok - its almost 2 bar. My wife said when she couldn't get hot water earlier she "tried to boost the pressure"

    Any Ideas? Can anyone also just check all the valves are the right way round - ie open where they need to be?


    Thanks
     
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  3. Gas2Air

    Gas2Air

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    New house? What a poor install and poor boiler. She’s increased the Central Heating pressure. Thinking it would boost the HW?

    The blue handle above the white pipe needs opening fully.
     
  4. SkipFeeney

    SkipFeeney

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    Thanks...this one here? I have done that as in the picture and no difference
     
  5. Gas2Air

    Gas2Air

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    No flow or heat to taps?
     
  6. terryplumb

    terryplumb

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    That is one of the two that controls the filling loop.
    Are you getting water out of your hot water taps ,but just not hot ?
     
  7. SkipFeeney

    SkipFeeney

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    As soon as the boiler is switched on it says No Water Flow Lockout...fill system to 1.bar and it never fires, the burner never lights up. I am getting cold water from the hot tap - so its flowing.
     
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  9. terryplumb

    terryplumb

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    You need an engineer . Either the pump is seized ,or failed ,or the part within the boiler that senses the water flow is suspect.
    I assume it doesn't fire up for central heating either ?
     
  10. SkipFeeney

    SkipFeeney

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    Just noticed as well, there is a black rubber nipple on the underside of the boiler near the front, its slightly wet to touch. I noticed some drips on the floor
     
  11. lightning

    lightning

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    Flow turbine faulty
     
  12. Garfeild

    Garfeild

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    What happens if you reset it?
     
  13. MeldrewsMate

    MeldrewsMate

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    I don't think so - that blue valve is the heating filling loop isolator, and should be SHUT.
    The cause of the complaining boiler has been covered by others:
    1. Faulty or blocked flow turbine - needs a Gas Safe fitter to remedy
    2. Failed pump - needs a Gas Safe fitter too

    OP, terryplumb has asked you a question - does the boiler work when heating is demanded? Answering it won't make your boiler work, but it may go some way towards answering your next question - "What do you think is wrong with it?". So far there are two possible failure modes, and each requires a Gas Safe fitter to rectify.

    For those about to argue, the front cover on this boiler forms part of the flue system, and a correctly functioning (and verified so) seal is mandatory to meet the Gas Safety (Installation and Use) Regulations.
     
  14. DIYnot Local

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