Waters 717plus - 6.4 Troubleshooting Procedures

Troubleshooting 154
6
6.4 Troubleshooting Procedures
Use the troubleshooting procedures below to correct or isolate problems.
The following procedures are covered in this section:
• Manual Syringe Purge
• Valve Leak Test
• Manual Transducer Adjustment
Special Valve Diagnostics
Two special diagnostics are accessible from the Valve/Motor page in user diagnostics:
• Valve Test Page
• Valve Rebuild Page
6.4.1 Manual Syringe Purge
In the event that repeated purges do not remove air from the syringe, perform a manual
purge.
1. Access the Valve/Motor Diagnostic page through the Diagnostics and User
Diagnostics Menus.
2. Set the valves and syringe positions as shown in Figure 6-1
.
Heater/cooler fails to
reach the set point
(continued)
Sample door left open
more than 5 minutes
Close sample compartment door.
High ambient temper-
ature in laboratory
Reduce ambient temperature.
STOP
Attention: The valve test diagnostics test is used to diagnose a faulty valve. This test
must only be used with the help of a qualified Waters Service representative.
Table 6-8 Autosampler Troubleshooting (Continued)
Symptom Possible Cause Corrective Action