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The red LED blinks to indicate a humidifier malfunction. The
humidifier shuts off automatically, see Section „Malfunctions and
Messages / Conditions“.
4.3 Basic Main PCB
Also see the detailed illustration of the main PCB in Section
„Basic PCB Connections“.
On the main PCB, jumper strip JP1 and two potentiometers are
located; control function is determined by how these are set.
Descriptions of this appear in the following sections:
4.4 Parameter Setting with Jumpers
Normally, settings (parameters) for the Basic Control can only be
modified using jumpers.
Jumpers are small blocks with two pins over which a circuit plug
can be placed, creating an electrical contact inside the plug.
Example: jumper open jumper jumpered