Hello to All,
I have a Vitocal 200s from an year. Last heating season all was fine. From the switch on before 3 weeks the pump can't go above 28 degC of the heating line. I watch the compressor cycle, it looks like some parameter is triping the compressor. There are no writen faults in the memory. I do full reset and nothing change. We have suspissions on the sensors, but after change...the same. Otherwise the pump works,but cannot go beyond this temperature.
What could be the reason?
