Posting a message to the forum will remove the above advertisement
  1. This site uses cookies. By continuing to use this site, you are agreeing to our use of cookies. Learn More.
  2. Checkout our Plumbers Insurance area - heavily discounted Public Liability Insurance and Van Insurance specifically designed for plumbers.

Discuss Help I'm drowning ! Danesmore 20/25 oil pump issue in the Oil and Solid Fuel Forum area at UKPlumbersForums.co.uk.

Tags:
  1. Farghi

    Farghi New Member

    Hello all you great and good people... I do hope I can find a little help with this inoperative boiler.
    Its my boiler but the wife loves it too...when it's working.
    Thursday morning no central heating on! No hot water!
    Boiler locked out...I reset it and it fired up. Different tone coming from oil pump! Ran at allotted times thro day
    Friday morning no ch no hw!
    Its an Electro Oil Inter burner b11
    Reset oil pump v noisy, so purchased another pump later in day fitted it primed it and attempted to fire it up no joy!
    On reset after no fire lock out, tried again no click from solenoid so no oil delivery thro pump to nozzle. Tried several times to no avail. Checked wiring all intact.
    In desperate attempt to isolate fault bought a new Honeywell controller. Inserted controller ...no fire no solenoid click!
    Tested wire integrity from controller base to solenoid earth live and neutral ok
    Tested the voltage from outlet of Honeywell controller to solenoid feed ...70 volts!
    Replaced new controller with old controller..70v
    Voltage feed to controller from boiler 240 v
    I DON'T think there is a step down transformer in the controller? Is there?
    Bench tested the coils on 240v supply they click and operate ok
    Where do I go now?
    Many thanks to all anticipation of a boiler Jedi
    ...my good lady; like me doesn't like this boiler at the moment!
    Kind Regards
    Farghi
     
    Last edited: Nov 11, 2017
  2. ShaunCorbs

    ShaunCorbs S. Mod Trusted Plumber GSR Top Contributor!!

  3. rpm

    rpm Trusted Plumber Top Contributor!!

    • Like Like x 1
  4. Chalked

    Chalked Plumber GSR

    How are you testing the new pump pressure? You can't just replace the pump, it comes set at a low pressure and needs setting at the correct pressure for the nozzle and burner.
    This then needs a flue gas analyser to check co and co2 readings. Air will then be adjusted to correct these readings.
    If any of these are out, it will either not fire, or be burning to lean or too rich.
    If you don't posess any of the above. Call a oil engineer who will sort it.
     
    • Winner Winner x 2
  5. Farghi

    Farghi New Member

     
  6. Farghi

    Farghi New Member

    Thank you for the advice I do appreciate it. However I've replaced the pump in the past and all was well it has fired up and run perfectly well. I am not averse to calling an engineer however to get the boiler up and running now would be my goal. There is not enough voltage to the solenoid on the pump to allow the oil through to the burner nozzle. that is my question, why would this be so?
    Its an Electro Oil Inter burner b11
     
  7. Chalked

    Chalked Plumber GSR

    Might be a faulty control box, might be a weak solenoid. Might be a blocked fuel filter, might be an air lock. It's one of those where you could keep throwing parts at.
    I would recommend you get the boiler set up correctly. A pump that is out by 2% either way will burn too hot = wasted fuel. Or burn too rich = soothed up boiler and again wasted fuel. You could get the boiler to fire and think it's fine, but use 10% more yearly fuel. A cost easily covered by getting the right person to sort your boiler.
     
    • Like Like x 3
  8. Farghi

    Farghi New Member

     
  9. Farghi

    Farghi New Member

    Thank you for your reply, Is a new control box, it's a new pump, the oil is available at the pump entry....the solenoid is not getting enough power to open to allow oil in to pump body. Why is the voltage 70 volts at the solenoid supply? That's on 2 control boxes!
     
  10. SimonG

    SimonG Trusted Plumber Top Contributor!!

    Stop playing with a combustion appliance that is more than capable of killing yourself and your family.

    The combustion will be out. Without an oil gauge and flue gas analyser then you are dangerously pittling in the wind.

    Get an engineer, cheaper and safer than blindly chucking new bits at it.
     
    • Like Like x 1
    • Agree Agree x 1
    • Funny Funny x 1
  11. Best

    Best Trusted Plumber Top Contributor!!

    Is there a countrywide shortage of oil engineers???
    No point making excuses. As well as presently doing without heat, you have been operating your boiler at just any old fuel to air mix that lets you hear the burner firing. Dangerous, bad for environment and must be costing you a fortune in unburnt oil. It definitely won't be near right. ( Note that a clean boiler shell can also indicate unburnt oil that just goes out the flue in fumes, unnoticed. )
    To get your boiler "up and running now" just simply would take you "now" to phone a good oil engineer who without doubt will have the expertise, experience and a few thousand pounds worth of spares, tools and very importantly an oil gauge and analyser to "now" sort and set your boiler.
    If you are just trying to save some money, you haven't, - all you have done is buy 2 main parts that probably weren't needed, plus wasted your time and money sourcing them.
    Your description of the faults is just too extensive and unlikely.

    [ Some info, - I repaired identical burner (B11) on a Worcester Bosch boiler this week. I guessed the fault correctly just from experience and also replaced several things to bring the boiler and oil line back to new. Also serviced boiler and set with analyser, all within 2 hours easily.
    Previous week same type of boiler with a random lockout for a different customer, - £8 parts sorted it plus the usual service, nozzle on top of that and a critical analyser set up.
    Only real costs to both the customers above parts was couple hours labour and they will save on oil usage. So pay a little, save a lot.]
     
    • Winner Winner x 2
    • Like Like x 1
    • Creative Creative x 1
    Last edited: Nov 12, 2017
  12. Farghi

    Farghi New Member

    Thank you for your great advice, I will call an engineer in the morning. Is there a list of approved engineers. As I've had problems getting one in the past. Near to CF72 9QF
    Again many thanks for all your replies
     
    • Like Like x 1
  13. Best

    Best Trusted Plumber Top Contributor!!

    You can get a member from OFTEC, but frankly it means nothing much. Need to still get someone experienced in oil and above all, honest.
     
    • Winner Winner x 1
  14. Last Plumber

    Last Plumber Plumber GSR Top Contributor!!

    Well Said.
     
    • Like Like x 1
  15. Farghi

    Farghi New Member

    Ok thanks for that advice, I've been down this road before...not many oil engineers in this part of my world. The last guy didn't inspire me with confidence as he just stayed replacing parts...I know that is what I have done however I did as much research via Worcester, Bentone , and Web forums.
    So I don't need to fix it myself but I need to find an oil tech/engineer OFTEC approved who is knowledgeable on my boiler and honest....OK I'll start looking!
    As I asked before, does this forum not have a list of oil engineers by location?
     
Loading...
Similar Threads - Help drowning Danesmore Forum Date
Conflicting Advice, help please Central Heating Forum Yesterday at 10:28 PM
Help a clueless homeowner! Central Heating Forum Yesterday at 8:41 PM