«Main Cause»
There is a liquid leak from the low pressure valve or metering pump, or from a unit positioned above the low pressure value (high pressure valve, column oven or detector, etc.).
«Countermeasure»
Inspect the liquid leak from the low pressure valve or metering pump, or in a unit positioned above the low pressure value (high pressure valve, column oven or detector, etc.), and wipe away any liquid from around the leak sensor.