58 Troubleshooting
4 GC Not Ready Symptoms
Temperature Never Becomes Ready
To be considered ready, a temperature must be at setpoint ±1 °C
for 30 s. If a temperature never becomes ready, do the following:
• Check for a missing insulation cup on an inlet or detector.
• Check for a very large temperature difference between the
oven and inlet or detector.
• Check for missing insulation around the inlet or detector.
• If using a cool on-column with CryoBlast or a PTV inlet:
• Check cryo coolant level.
• Check if operating limits have been exceeded.