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Michael, Customer Service
Category: Appliance
Satisfied Customers: 9568
Experience:  I have been an appliance repair tech for over 30 years and will help you solve your problems.
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My Worcester Greenstar burner goes out after a few seconds

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My Worcester Greenstar burner goes out after a few seconds when firing up from cold. Error code EA flashes on, indicating burner not lit. It will fire up again if error button pressed but will shut down and show error code again. Each time this is done the temperature gauge rises a few degrees. After about 3 or 4 cycles the burner will stay lit and boiler will function normally and that seems to be when the temperature reaches about 30C. I have replaced the pump to rule that out. Boiler had been functioning well for years before this problem. I can 'coax' the boiler to work every morning and have done so for seven days in a row now. There must be a fault but I can't figure out what.
Hi Good morning,
when the unit is on, how does it sound before it fails, also any excess smoke?
Also do you have to reset the control to get it back on?
Thank you
Tech Michael
Customer: replied 4 years ago.

Good morning. There is a sound of the burner declining in intensity.There is no knocking.No excess smoke.

Hi Max, thank you for that information.
this is a likely a bad nozzle or regulator. Whats happening is that its clogged or restricted and eventually it will go into shut down because the sensor sees that the flame isn't normal.
The best way to handle this is with a service technician doing a professional cleaning, that will solve the problem;-)
If this is something you would like to do yourself please let me know, I will stick with you until this is fixed, since this may take some time, if you will rate my service in a positive fashion thus far before you close this page, the system will allow me to schedule free follow ups with you and also ensure your question will NOT close or time out;-)
You will then be able to contact me at anytime at no additional cost until we have this fixed for you.
Thank you Max.
Tech Michael

Michael and other Appliance Specialists are ready to help you
Customer: replied 4 years ago.

I could do this, and have the manual telling me what to do. I wonder if I should get a heating engineer in though to test the exhaust gases and all that stuff that's described in the manual. Or should I give a good clean out. and see what happens.

Hi Max Thanks, I would get a tech because as you say you need to know if the exhaust is venting properly. Also if the unit hasn't had a professional cleaning in 2 years or more its a good bet it needs one;-)
But I will be here for you.
Please rate kindly so I can set free follow ups for you in case I can help further.
Thank you Max.
Tech Mike