What to do if Trane Tracker Version 12 Air Conditioner Tracker controller did not discover UCMs?
- MMicheal EllisSep 8, 2025
If the Tracker controller did not discover UCMs when initially started, verify the correct wiring of the Comm5 communication link (UCMs can only be discovered if Comm5 communication has been established). Allow at least 5 minutes for the controller to discover the UCMs.







