Our Waters GCT Premier is unable to collect data due to the filament not turning on at the appropriate time.

The Tune pages all show normal settings/readbacks. The filament current/emission current are initially on and we can collect spectra for calibration ions without issue. Toggling the "Filament Off/Reset Filament" works without any problem so we can send signals/events to the EPC and instrument.

However, on injection of a sample, the filament is turned off for the solvent delay (3 mins) but does not come back on after 3 mins so no data is collected. Manually trying to reset and turn on the filament no longer works and we have to do a hard reboot of the whole system to reset the Tune page so that the Filament is responsive again.

I've checked the MS file and verified that the Solvent Delay is 0-3 mins. Have also removed the Solvent Delay but same problem remains on the Inject signal.

Also checked the Startup/Shutdown settings and have turned these on/off. No effect on this problem.

It seems that the filament off command from the Sample Inject is actively blocking the reset and corrupting the Tune file ?

Anyone else encountered a similar issue ? Any advice ?