Hi
I have a vaillant eco tec pro which is about 2 years old now.
There is quite a faint rumbling sound to be heard through the pipes.
Also one of my rads upstairs is vibrating to the same frequency of the rumbling. (the rumbling is amplified in stud walls etc where pipe work runs)
All valves fully open & no air can be bled from any rads.
Any help apreciated.
Cheers
I have a vaillant eco tec pro which is about 2 years old now.
There is quite a faint rumbling sound to be heard through the pipes.
Also one of my rads upstairs is vibrating to the same frequency of the rumbling. (the rumbling is amplified in stud walls etc where pipe work runs)
All valves fully open & no air can be bled from any rads.
Any help apreciated.
Cheers