Leak

Error ID: 64

A leak was detected in the module.

The signals from the two temperature sensors (leak sensor and board-mounted temperature-compensation sensor) are used by the leak algorithm to determine whether a leak is present. When a leak occurs, the leak sensor is cooled by the solvent. This changes the resistance of the leak sensor which is sensed by the leak sensor circuit on the mainboard.

NOTE

The leak sensor in the sampler is hidden under the Column Shelf.

NOTE

The leak sensor in the sampler is hidden under the ICC Column Heater or Column Shelf respectively.

Subpages

Probable cause		Suggested actions
1	Condensation.	Use a higher temperature setpoint.
2	Loose fittings.	Ensure all fittings are tight.
3	Loose column fittings.	Ensure all fittings are tight.
4	Broken capillary.	Exchange defective capillaries.
5	Leaking column-switching valve seal.	Exchange the valve seal.
6	Loose or leaking purge valve, inlet valve, or outlet valve.	Ensure pump components are seated correctly. If there are still signs of a leak, exchange the appropriate seal (purge valve, inlet valve, outlet valve).
7	Loose or leaking purge valve, active inlet valve, or outlet valve.	Ensure pump components are seated correctly. If there are still signs of a leak, exchange the appropriate seal (purge valve, active inlet valve, outlet valve).
8	Loose or leaking active inlet valve, outlet ball valve, or EMPV.	Ensure pump components are seated correctly. If there are still signs of a leak, exchange the appropriate seal (active inlet valve, outlet ball valve, or EMPV).
9	Leaking rotor seal or needle seat.	Exchange the rotor seal or seat capillary.
10	Leaking valve.	Exchange valve.
11	Leaking flow cell.	Exchange flow cell components.
12	Defective pump seals.	Exchange the pump seals.
13	Defective metering seal.	Exchange the metering seal. Make sure the leak sensor is thoroughly dry before restarting the autosampler.
14	Leaking peristaltic pump.	Exchange the peristaltic pump.

21-Jun-2025