Search results

I have an (old) Ecotec 415. My observation is that it always starts at 12kw for approx 1 minute, pauses for 5 seconds then starts again at d0 power before modulating down as required. This large power start results in high temperature rise and means that the boiler cannot restart after cycling...

I have a Vaillant Ecotec 415 open-vent boiler with VRC430 installed as a roomstat. I have had a lot of difficulties with getting it to work at all and the situation is still not satisfactory. I believe that I have a very good understanding of the problem. I have been contributing to a...