Worcester Boiler making incredibly loud rumbling sound.

[Jordan Crellin]

As of last night, we have noticed our Worcester boiler (Greenstar 25si) is making an incredibly loud rumbling sound, like that of a tumble dryer or something. It still produces hot water and everything, but we are worried about this noise. We increased the pressure earlier, and the boiler was recently checked by an engineer in the past few months and we are unable to have our landlord send one as they are currently away.

Any ideas?

Thanks.

 

[Last Plumber]

You need a gas safe registered Engineer to look it over.

 

[muggles]

Almost certainly a gas combustion issue - you need a Gas Safe Registered Engineer

 

[ShaunCorbs]

Almost certainly a gas combustion issue - you need a Gas Safe Registered Engineer

Might not be a combustion issue

 

[GH77]

Need a competent Gas Engineer to check inlet working Gas Pressure, and combustion on High and Low Fire, followed by full function test.