Alert codes displayed in the 850, 950 and 1050 communicating controls have been updated and are now listed in the Interactive Troubleshooting Guide (ITG) found in Comfortsite
To access the ITG: Comfortsite> Tech Support > Trane > Tools > Interactive Troubleshooting Guide for 850/950/1050 Communicating Control (Requires log-in.) You can now browse updated alert IDs, names, problem descriptions and possible causes.