Extra Function - Cisco 3905 User Manual

12 • UK
Operating LED (Fig. 12-E)
Observation
Flashing RED
Flashing GREEN
Flashing YELLOW
Constant GREEN
Constant YELLOW
Alarm LED (Fig. 12-G)
Constant RED indicates a power failure has occured. To reset and start the controller, press the ON/
OFF button once.
If the alarm LED (Fig. 12-G) activates during operation, press the ON/OFF button twice to stop the
fan and restart the controller. If the alarm LED remains on after reset, please refer to the "Troubles-
hooting" section.

4.1 Extra function

Press the ON/OFF button (Fig. 12-F) for at least four seconds to increase the fan's
operating speed. If the controller is switched off, the fan speed will be reset.
Type of fault
No start-up signal from the safety circuit Typically, because the fan is restarted while
it is still running
The fan has started and the controller is waiting for the chimney-draught-ok signal
Chimney draught is confirmed correct but signal from the Air inlet is missing
Start up ok and the fire can be lit
The ventilation function is active and the fire is OFF
3001736-EFC21-EFC25-UK