Motor-Drive Power - Agilent Technologies InfinityLab LC Series User Manual

6 Error Information
Module Error Messages

Motor-Drive Power

Error ID: 2041, 2042
The current drawn by the pump motor exceeded the maximum limit.
Blockages in the flow path are usually detected by the pressure sensor in the
damper, which result in the pump switching off when the upper pressure limit is
exceeded. If a blockage occurs before the damper, the pressure increase cannot
be detected by the pressure sensor and the module will continue to pump. As
pressure increases, the pump drive draws more current. When the current
reaches the maximum limit, the module is switched off, and the error message is
generated.
Probable cause
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Preparative Binary Pumps User Manual
Flow path blockage in front of the damper.
Blocked (passive or active) inlet valve.
Blocked outlet valve.
High friction (partial mechanical blockage) in
the pump drive assembly.
Defective pump drive assembly.
Defective main board.
Suggested actions
Ensure the capillaries and frits between the
pump head and damper inlet are free from
blockage.
Exchange the (passive or active) inlet valve.
Exchange the outlet valve.
Remove the pump-head assembly. Ensure there
is no mechanical blockage of the pump-head
assembly or pump drive assembly.
Please contact your Agilent service
representative.
Please contact your Agilent service
representative.
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