User manual

Bio-inert Quaternary Pump User Manual 79
Error Information
7
General Error Messages
Fan Failed
The cooling fan in the module has failed.
The hall sensor on the fan shaft is used by the main board to monitor the fan
speed. If the fan speed falls below a certain limit for a certain length of time,
the error message is generated.
This limit is given by 2 revolutions/second for longer than 5 seconds.
Open Cover
The top foam has been removed.
The sensor on the main board detects when the top foam is in place. If the
foam is removed, the fan is switched off, and the error message is generated.
Probable cause Suggested actions
1 Fan cable disconnected.
Please contact your Agilent service
representative.
2 Defective fan.
Please contact your Agilent service
representative.
3 Defective main board.
Please contact your Agilent service
representative.
4 Improperly positioned cables or wires
obstructing fan blades.
Ensure the fan is not mechanically blocked.
Probable cause Suggested actions
1 The top foam was removed during operation.
Reinstall the top foam.
2 Foam not activating the sensor.
Please contact your Agilent service
representative.
3 Dirty or defective sensor.
Please contact your Agilent service
representative.
4 Rear of the module is exposed to strong
direct sunlight.
Ensure that the rear of module is not directly
exposed to strong sunlight.