Loud humming noise from vokera boiler

[ellie11]

I am having problems with my boiler british gas home care have been out 4 time but the problem returns, about 5-10 minute of the heating coming on the boiler starts making a loud humming noise lasting for sometimes a few seconds to over 10 minutes, if I turn the thermostate down or recently I've just turned temperature up on the radiator setting on the boiler the noise stops instantly and water comes out the condensate pipe, still got the condensate draining into a bucket after the pipe constantly froze in the recent cold weather I am at my wits end the noise can be heard from outside as my heating is set to come on at 5 in the morning I dont think I'm very popular with my neighbours just now so would appreciate any advice

 

[gasmarc]

are you sure the noise is from the boiler or a radiator valve ?

 

[ellie11]

I am pretty sure it's the boiler

 

[gasmarc]

does it only make the noise when the heating is on or does it do it when the water is turned on presuming its a combi

 

[ellie11]

Only the heating yes it's a combi althought I havent left a tap running long enough I have an electric shower the engineer who was out the last time seemed to think it was to do with the condensate not draining properly but said the trap was working ok

 

[gasmarc]

have you had any work done recently around pipes etc

 

[ellie11]

no nothing at all

 

[gasmarc]

i know this may sound strange but why dont you record it on your phone for the BG bloke it is more that likely a faulty fan,pump ,gas valve, or even a seal perhaps , At least if its recorded you have proof

 

[ellie11]

He's actually heard!! it but I have recorded it for the next person who comes out to it I will get british gas out again just wanted someone else's opinion

thank you for taking the time to reply you have been a great help will mention the above to the engineer

 

[oldplumber]

could be the boilers kettling till it reaches temp and modulates to a lower flame which can be right noisy at times

 

[gasmarc]

Ellie11 your welcome Good Luck
That is one I look forward to hearing Oldplumber and being able to say the cause to the customer