I have recently had a new Telford Tempest Unvented cylinder installed by my plumber and am now suffering noisy vibrations/resonation that sound like a whirling helicopter as soon as the hot water is switched on. This only stops when the central heating is switched on. The buzzing noise seems to be coming from the heat exchanger coil inside the cylinder. I have tried changing the pump speed but the noise seems to be independent of that.
My plumber has fitted an automatic bleed as he thought it could be due to trapped air in the system but this has had no effect.
I am not a plumber but would appreciate any thoughts ideas on how to resolve this.
My plumber has fitted an automatic bleed as he thought it could be due to trapped air in the system but this has had no effect.
I am not a plumber but would appreciate any thoughts ideas on how to resolve this.