Compensation Sensor Short; Fan Failed - Agilent Technologies InfinityLab LC Series User Manual

6 Error Information
General Error Messages

Compensation Sensor Short

Error ID: 0080
The ambient-compensation sensor (NTC) on the power switch board in the
module has failed (open circuit).
The resistance across the temperature compensation sensor (NTC) on the
power switch board is dependent on ambient temperature. The change in
resistance is used by the leak circuit to compensate for ambient temperature
changes. If the resistance across the sensor falls below the lower limit, the error
message is generated.
Probable cause
1
2

Fan Failed

Error ID: 0068
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.
Depending on the module, assemblies (e.g. the lamp in the detector) are turned
off to assure that the module does not overheat inside.
Probable cause
1
2
3
1290 Infinity II Preparative Open-Bed Fraction Collector User Manual
Defective power switch assembly
Loose connection between the power switch
board and the main board
Fan cable disconnected.
Defective fan.
Defective main board.
Suggested actions
Exchange the power switch assembly.
Check the ribbon cable between the power
switch board and the main board.
Suggested actions
Ensure the fan is connected correctly.
Exchange fan.
Exchange the main board.
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