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Firebird boiler woes

  • 06-02-2021 8:53pm
    #1
    dawson176
    Registered Users, Registered Users 2 Posts: 4 ✭


    Hi all, having a strange problem with my 50/90 boiler. So I bled the boiler , started it up and away it goes will stay operating while on 24hr setting and all is good. Eventually once its off for a period of time or if I set it up for timed operation then it attempts to come on gives a bit of a humming and stops. Once i take off the fan cover and give it a bit of a turn away it goes again and will stay going until the same as above happens. Tormented is a understatement having cleaning out absolutely everything. Any help would be fantastic thanks


Comments

  • #2
    corkgsxr
    Registered Users, Registered Users 2 Posts: 3,404 ✭✭✭corkgsxr


    Capacitor


  • #3
    jimf
    Registered Users, Registered Users 2 Posts: 3,978 ✭✭✭jimf


    most likely capacator as said above 4uf cap approx 15 eu from your local plumbing merchants dont arse around without the power been off

    but it could also be motor bearings or tight spot coming in fuel pump


  • #4
    John.G
    Registered Users, Registered Users 2 Posts: 3,632 ✭✭✭John.G


    Jimf might answer this, does the fan/pump shaft have ball bearings or just bushes?, I think I mentioned this before that I had a Minor 1? burner in a Grant boiler and it was a PITA, I used have to remove it a few times a year and squirt a drop of oil down the shaft, the first sign of this was having to use a screwdriver to give it a bump start, I even changed the capacitor from I think 3uf to 4uf but to no avail.


  • #5
    jimf
    Registered Users, Registered Users 2 Posts: 3,978 ✭✭✭jimf


    John.G wrote: »
    Jimf might answer this, does the fan/pump shaft have ball bearings or just bushes?, I think I mentioned this before that I had a Minor 1? burner in a Grant boiler and it was a PITA, I used have to remove it a few times a year and squirt a drop of oil down the shaft, the first sign of this was having to use a screwdriver to give it a bump start, I even changed the capacitor from I think 3uf to 4uf but to no avail.

    a bearing at both ends

    its usually the bearing at the front end that dries out but for the few pence they cost its best to change both it is only a 20min job


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