What is Philips CT error code GTL?

Gradient Temperature Low alarm on the Oxford 2195 cooler cabinet. It is reported by the Oxford 2195 Cooler Cabinet (MRI gradient/primary water cooling) on Eclipse 1.5T and Polaris and Apollo CT systems. Severity: Alarm — operational cooling fault; subsystem: Water Cooling System (Oxford 2195 Cooler Cabinet).

Alarm — operational cooling faultWater Cooling System (Oxford 2195 Cooler Cabinet)

GTL — Gradient Temperature Low alarm on the Oxford 2195 cooler cabinet

Philips CT error code, reported by the Oxford 2195 Cooler Cabinet (MRI gradient/primary water cooling).

What GTL means

On Eclipse 1.5T and Polaris and Apollo CT systems, status code GTL indicates: Gradient Temperature Low alarm on the Oxford 2195 cooler cabinet. The code originates in the Water Cooling System (Oxford 2195 Cooler Cabinet) section of the Oxford 2195 Cooler Cabinet (MRI gradient/primary water cooling). Severity level alarm (Alarm — operational cooling fault).

Reported action: Gradient Temperature Low means the secondary (gradient coil) circuit water temperature reading is below the alarm threshold. Read current values from the controller menu and verify the secondary circuit fluid mix/level before acknowledging. This document does not give further diagnostic or repair steps specific to this alarm..

Shown as an alarm-status abbreviation on the Picker 3020 controller of the Oxford 2195 Cooler Cabinet, documented for the Philips/Picker Eclipse 1.5T MRI (and shared, per the same table, by Polaris and Apollo systems). Not confirmed by this document for other cooler models.

Full troubleshooting for GTL

The complete diagnosis, cause tree, and step-by-step remedy for the Water Cooling System (Oxford 2195 Cooler Cabinet) subsystem are documented in the FSELIB Activion16 (TSX-031A) service manual — re-authored, web-first, with real figures.

Open the Activion16 service manual

Related Water Cooling System (Oxford 2195 Cooler Cabinet) codes

E1310Cooling fan RPM is out of the acceptable operating range E1313System is no longer fan-redundant PFLPrimary Flow Low alarm on the Oxford 2195 cooler cabinet GFLGradient Flow Low alarm on the Oxford 2195 cooler cabinet PTLPrimary Temperature Low alarm on the Oxford 2195 cooler cabinet PTHPrimary Temperature High alarm on the Oxford 2195 cooler cabinet GTHGradient Temperature High alarm on the Oxford 2195 cooler cabinet RVLReservoir Very Low alarm — secondary circuit header tank critically low on the Oxford 2195 cooler cabinet

Discuss GTL with other field engineers in the FSELIB forum

Source: Philips/Picker Eclipse 1.5T MRI service documentation — Theory and Troubleshooting of Oxford 2195 Cooler Cabinet (Diagnostic Tools and Information, Maintenance). Reference information re-authored by FSELIB — not a copy of the OEM manual.