PLEASE NOTE!
To avoid water condensation inside the power Unit cabinet and the blueberry PLUS -
User Unit, the switch disconnector S1, the residual current device Q2 and the circuit
breakers Q3 (electronics), Q5 (climate system) shall be left switched on in both
equipment, allowing the heating resistances to turn on if necessary. See the image
below to check where are located these components inside the cabinets. Make sure that
fuse F20 is opened in both equipment.