I did a descaling of this machine and noticed that one of the boiler drains was clogged so therefore I could not complete the descaling automatically thru Breville's automated process. Waited 24 hours and the boiler will now drain but the temperature will not reach the required 200 degrees. The highest temp it will achieve is 160 degrees. Removed top and you can feel that the larger boiler for the milk frothing will not heat at all while the smaller boiler seems to heat up properly. I did get it to heat to 200 degrees one time in the morning but have not been able to get it 200 degrees at any other attempts. Machine will not function until the 200 degrees is reached.