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silvertabbies

[h=1]Boiler noise like vibrating/buzzing Gloworm Combi Ultracom 38cxl?[/h]Combi boiler works ok but after about half an hour or more it suddenly makes a noise which sounds like vibrating and I can hear the sound also in the radiators. The sound will stop of it's own accord after ten mins or so but sometimes start up again.

I have found if I just turn the hot water tap on for a second it will stop making the noise.

I have bled the radiators twice and no air in them. The system is only two years old and recently serviced.

Any ideas what is wrong? I can't understand why the boiler works fine and just kicks in with that sound after about half an hour - what is triggering that?


  • 1 hour ago
  • - 4 days left to answer.
 
What you mean 4 days left to answer

Not my problem
 
Sorry the '4 days left to answer' line was not intended and got pasted in by mistake = my mistake

All I can add is that TRV valves are fitted to the rads except one.









Boiler noise like vibrating/buzzing Gloworm Combi Ultracom 38cxl?

Combi boiler works ok but after about half an hour or more it suddenly makes a noise which sounds like vibrating and I can hear the sound also in the radiators. The sound will stop of it's own accord after ten mins or so but sometimes start up again.

I have found if I just turn the hot water tap on for a second it will stop making the noise.

I have bled the radiators twice and no air in them. The system is only two years old and recently serviced.

Any ideas what is wrong? I can't understand why the boiler works fine and just kicks in with that sound after about half an hour - what is triggering that?


  • 1 hour ago
  • - 4 days left to answer.
 
Status
Not open for further replies.

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