For any system, the initial troubleshooting objective is to isolate the source of the problem to a specific system component or to an aspect of the analysis. Once this has been done, corrective action can be taken. Although this manual cannot address every possible symptom and failure, the techniques discussed here can be applied to problem solving throughout the system.
A solid understanding of system operation is necessary for troubleshooting. Rather than immediately assuming that a problem exists, first check the user manuals to verify that correct operating procedures are being followed.
Also, it is essential that users keep a log of all maintenance-related activities (for example, when eluents are prepared and when columns are changed). Tracking these events can provide valuable insights. For example, if the chromatogram on an anion system seems to have undergone a radical and sudden change, check the log or audit trail for the date that the latest batch of eluent was placed in service. If the problem was first observed with the new batch, verify that the eluent was properly prepared. Maintaining a written record of problems and their resolution can help solve similar problems in the future.
In summary, an effective troubleshooting strategy requires that users:
- Understand the operation of the entire system.
- Keep a maintenance log.
- Isolate the problem to either the hardware or chemistry.
- Refer to the troubleshooting and maintenance sections of the appropriate user manual.