Troubleshooting Process Chart
- Probable Instrument Fault
- Correct / Change Set-up & Re-run Analysis
- Probable Methodology Fault
- Leak in System - Pump Fault
- Detector Fault or Injector Fault
- Pump Fault or Column Compartment Fault
- Autosampler Fault
- Improve Method
- High Back Pressure Issues
- Run a Known Method on the System
- Look for Differences Between Systems
- Probable Instrument Fault
- Correct / Change Set-up & Re-run Analysis
- Probable Methodology Fault
- Leak in System - Pump Fault
- Detector Fault or Injector Fault
- Pump Fault or Column Compartment Fault
- Autosampler Fault
- Improve Method
- High Back Pressure Issues
- Run a Known Method on the System
- Look for Differences Between Systems
Leak in System / Pump Fault
Having established that the system is not generating enough backpressure, there are a few areas to review:
- The system is leaking – check column connections and other fittings
- The pump is not delivering the correct flow
- The pressure sensor is not working
Alternatively, possibly you have blockage prior to the sensor that is restricting flow.
