Regional Jet 900 (CRJ900)
Flight Crew Air Transport Pilot (ATP); Flight Crew Instrument; Flight Crew Multiengine
Aircraft Equipment Problem Critical; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Fuel Issue
Flight Crew Landed in Emergency Condition; Flight Crew Overcame Equipment Problem; General Maintenance Action
Aircraft
After takeoff the gear was retracted and we got a brake overheat warning. The First Officer ran the Quick Reference Checklist and as I was already below 210 kts; he dropped the gear. At this point the Brake Temperature Monitoring System (BTMS) showed 15 and was slowly climbing. It reached 20 and stayed there for a bit before dropping to 16 or 17 and then climbing back to 20. After running the checklists and discussing the warning; the number readout and the weather in ZZZ1 (we were a diversion from there originally) we took a conservative approach and returned to ZZZ. On short final the BTMS went to all yellow dashes and on touchdown went to a red 01.Looking back I think we made the correct choice to return; as the symptoms of a faulty BTMS per the checklist was not completely present until landing/short final. In the future I may approach this exact scenario a little different but stand by our choice to return.
CRJ-900 Captain reported a brake overheat indication after takeoff and gear retraction causing an air turnback and precautionary landing.