Anyone familiar with a Dionex/Thermo FLM module?
Posted: Fri Apr 10, 2026 1:42 am
Hello,
My grad student workers and I are attempting to rebuild an old Dionex U3000 LC. The FLM-3000 module is giving some errors - one for the flow control valve and the other for the column switching valve.
When we start the system, the stepper motor for the FCV tries to move but doesn’t as can be seen here:
https://drive.google.com/file/d/1ocoTC- ... p=drivesdk
The switching valve motor does nothing at all.
If both valves did nothing upon startup, I’d guess the main PCB to be the issue, but since the FCV does try something, I suspect their stepper motors. Because this is an older module, I suspect finding a replacement motor for both may be difficult. I can connect the module to Chromeleon, but am more familiar with Agilent systems and software, so I'm not sure what should or should not be happening when I do the selft tests below.
Does anyone have experience with these?
My grad student workers and I are attempting to rebuild an old Dionex U3000 LC. The FLM-3000 module is giving some errors - one for the flow control valve and the other for the column switching valve.
When we start the system, the stepper motor for the FCV tries to move but doesn’t as can be seen here:
https://drive.google.com/file/d/1ocoTC- ... p=drivesdk
The switching valve motor does nothing at all.
If both valves did nothing upon startup, I’d guess the main PCB to be the issue, but since the FCV does try something, I suspect their stepper motors. Because this is an older module, I suspect finding a replacement motor for both may be difficult. I can connect the module to Chromeleon, but am more familiar with Agilent systems and software, so I'm not sure what should or should not be happening when I do the selft tests below.
Does anyone have experience with these?