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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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Vaillant eco combi boiler makes loud moaning noise when

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vaillant eco combi boiler makes loud moaning noise when heating is on.How can we stop this without switching off?

Hi , I am Tech Michael an expert in this field and I will be assisting you today. I am a Master Technician that's dedicated to giving you the best Answer possible.

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Can you explain the noise also where it seems to be coming from so I can tell you if its ok or not safe?

Thank you

Tech Michael

Customer: replied 1 year ago.
p water in use.
Customer: replied 1 year ago.
Have you got my first message??

Hi, if it sounds like bubbles thats ok, but it needs to be bed from the radiator valves to quiet that down.

Does the boiler run ok sound wise?

Thank you

Tech Mike

Customer: replied 1 year ago.
The noise is a loud humming(no bubbles involved).radiators have been bled!!!

Thank you and thanks for your patience these are technical issues.

Does the hum continue when it isnt running?

That will tell me what the problem is if there is one;-)

Thanks again.

Tech Michael

Customer: replied 1 year ago.
The noise STOPS as soon as the heating is switched off.

Hi if it all seems to be running normal, heat and all Its probably a vibration. No big deal. But if it hasn't been professionally cleaned in over a yer , it needs to be because that too can cause this issue, due to soot and dust build up.

Any local heating company can do this for you for a fair price;-)

In any case, I will stick with you until this is complete.

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Thank you and have a great day!


Tech Michael

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