My Vaillant Ecotec 837 combi started making this noise either when we turn a hot water tap or when the heating ( on timer) kicks in about 6:30 in the morn ;-
http://www.youtube.com/watch?v=KWkJv1HK0J8
I use a VRT 392F bluetooth controller that worked fine since I bought the whole system roughly 3 yrs ago.
I set the temp of the water from the VRT 392F module and the heating temp and on/off as well . This means setting the dials to max on the boiler and let the timer take over and control the boiler.
I checked the VRT 392F and in settings its definatly talking to the boiler.
The only way I can make it stop making this noise is by lowering the water temp to 50ish which doesnt help as the water is then luke warm.
Anyone any idea's ? It does have a vernox F1 filter attached. Any help would be greatly appreciated.
http://www.youtube.com/watch?v=KWkJv1HK0J8
I use a VRT 392F bluetooth controller that worked fine since I bought the whole system roughly 3 yrs ago.
I set the temp of the water from the VRT 392F module and the heating temp and on/off as well . This means setting the dials to max on the boiler and let the timer take over and control the boiler.
I checked the VRT 392F and in settings its definatly talking to the boiler.
The only way I can make it stop making this noise is by lowering the water temp to 50ish which doesnt help as the water is then luke warm.
Anyone any idea's ? It does have a vernox F1 filter attached. Any help would be greatly appreciated.