Hi, My Vaillant Thermo Campact Boiler (approx 5 years old) has started loosing pressure, i.e. Dial on front of Boiler falls from 2 (green) to zero. The radiators and hot water continue to heat up but I must refill boiler every day.
I have checked all radiators and the cylinder tank for leaks but non evident. I have done no diy to the system.
This has been happening for approx 3 months and I first noticed it when the heating switched on in the morning with loud noises coming from the cylinder tank, probably caused by lack of water!)
Any ideas why the boiler is loosing pressure please.
Cheers
I have checked all radiators and the cylinder tank for leaks but non evident. I have done no diy to the system.
This has been happening for approx 3 months and I first noticed it when the heating switched on in the morning with loud noises coming from the cylinder tank, probably caused by lack of water!)
Any ideas why the boiler is loosing pressure please.
Cheers
