28
EN
!
WARNING! RISK OF FATAL INJU-
RIES!
Never carry out repairs or installation
work yourself. Only a qualified technician
may remove the housing cover.
!
ATTENTION!
Do not attempt to plug the sensor(s) into
the S-Bus (RJ12) jack ! This will damage
the main board and the sensor!
8.4 Water level control
A
B
C
Level probe
top - signal pass-through
botttom - no signal, 0 Ω
Water level control in the tank effects fully automatically thanks to the integrated water level probe.
The level probe can be, if required, taken out and controlled for proper functioning. By this oppor-
tunity you can also check the condition of the inner walls of the water tank.
Undo 3 mounting screws of the level probe base plate (A), remove the base plate (B) with gasket
(C) and level probe out of the tank.
Disconnect the level probe from the board.
Now test the probe using a standard multimeter. Float in top position - signal should go through
(resistance 0 Ω), float in bottom position - no signal (resistance
∞).
