Rayburn Royal going out

Discussion in 'Plumbing and Central Heating' started by Dazleeds, 2 Nov 2021.

  1. Dazleeds

    Dazleeds

    Joined:
    2 Nov 2021
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    Hi,

    I have a Raybun Royal that has a bubble conversion. I have serviced it myself for the last 14 years and have had no problems, until now, and I would appreciate some suggestions.

    The kerosene is fresh.
    The filter on the tank outlet is clean.
    The control valve is an OCI. I have stripped it down and the metering slot is clear.
    The filter for the control valve is clean.
    I have checked the fuel level in the float chamber and it is correct.
    The fuel level is the correct hight in relation to the base of the burner.
    The pipes running to the burner are clear.
    I have carried out a flow test and on low and high settings the flow is as it should be.
    The burner lights without any drama, and quickly gets up to approx 140-150 degrees c on level 3. There is a nice blue flame.
    However after approx 10 hours the temperature starts to drop, the vapouriser starts to cool and then it goes out. The oil feed going into the burner is a bit coaked up following this event. Repeated 4 times and no improvement.
    Flue seems to be unobstructed with a good draw.
     
  2. Sponsored Links
  3. oilhead

    oilhead

    Joined:
    29 Nov 2009
    Messages:
    2,183
    Thanks Received:
    524
    Location:
    Shropshire
    Country:
    United Kingdom
    If burner goes out, then it has to be starved of fuel. Do you have a remote capillary fire valve? If so, this may be closing off without latching.
     
    • Thanks Thanks x 1
  4. Dazleeds

    Dazleeds

    Joined:
    2 Nov 2021
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    There is one located outside just before feed pipe enter house. Are you saying that these can not close fully but just strangle the fuel supply? It must be returning to full open (assume they would normally have to be reset somehow) as the fuel flow is normal once cold - so a faulty temp sensor?

    Is there anyway to test them under these conditions?

    Thanks for you reply, I appreciate it.
     
  5. Terrywookfit

    Terrywookfit

    Joined:
    19 Jul 2007
    Messages:
    5,786
    Thanks Received:
    1,096
    Country:
    United Kingdom
    Move the phial to a cooler position and see what happens. Temporally !!!
     
  6. Dazleeds

    Dazleeds

    Joined:
    2 Nov 2021
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    A good suggestion. If it proves a faulty fire valve then I just have the challenge of convincing the boss that the rayburn should then be turned off for maintenance after 3 weeks of false promise...oh well. Thanks for the reply.
     
  7. Dazleeds

    Dazleeds

    Joined:
    2 Nov 2021
    Messages:
    4
    Thanks Received:
    0
    Country:
    United Kingdom
    Just to follow up. Turns out it was indeed the fire valve. Thanks for your help. Normal service is resumed :)
     
    • Like Like x 2
  8. Sponsored Links
Loading...

Share This Page