My friends Vailant 824e is working fine on the heating side but hot water is low temperature around 35 degrees the temperature rises slightly when you reduce flow at tap.
The flow and return don't get hot when hot water is running so thinking it's not the diverter and the hot water doesn't go hot cold the temperature stays constant. I was thinking maybe the DHW heat exchanger or maybe not any advice much appreciated.
The flow and return don't get hot when hot water is running so thinking it's not the diverter and the hot water doesn't go hot cold the temperature stays constant. I was thinking maybe the DHW heat exchanger or maybe not any advice much appreciated.