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Pc-Board SF18
The pc-board SF18 was the control logic of the water cooling unit. Since September the 16th 2015 it was replaced
by the pc-board SF24.
LEDs
LED state designation
1 (red) lit weak microprocessor not programmed
blinking irregular LorchNet (CAN-bus) error
blinking synchronous with LED2 owrate too low (<0.3 l/min)
2 (green) o status not ok
blinking Status: blinking with 1Hz
if pump o, LED is blinking with short pulses
if pump on, LED is blinking with long pulses
3 (green) on 5V supply voltage ok
o 5V supply voltage missing
Picture pc-board SF18
X10
X2
X3
X9
X5
X4
X6
X8
X1
X7
LED3
+5V
LED2
Status
LED1
Err
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