Narrative:

During taxi in on the previous flight (same aircraft; same crew) we received a brake ovht message with the lh ob brake temperature monitor system (btms) reading 20. The reading returned to normal within about 2 minutes; no wheel fuse plugs blew; and all other brake indications were normal. A mechanic reset the btms and signed off the logbook with operations check normal. On the next takeoff; we received a brake overheat warning when above 80 knots but below V1. I continued the takeoff. We left the gear down momentarily. Before we got to 1000 feet AGL; the warning went away and the lh ob btms went to dashes.after a brief discussion about the indications; I elected to raise the gear. We consulted the QRH; but with no more warning indication; we continued to [destination]. Several minutes later; while cruising at FL200; the brake ovht warning reappeared. We ran the QRH and extended the landing gear. Over the next few minutes; the lh ob btms oscillated several times between dashes and red value of 20. To be conservative; I elected to keep the gear down; [advised ATC of emergency condition]; and proceed to [destination] runway xyc (10;000 feet long). We informed the fas and passengers about what was happening. Landing was uneventful; but we did have crash fire rescue equipment check the brakes for any signs of overheating before we taxied to the gate.

Related reports:

Google
 

Original NASA ASRS Text

Title: CRJ-900 flight crew reported receiving a Brake Over-Heat message during takeoff roll and then at random times during the flight.

Narrative: During taxi in on the previous flight (same aircraft; same crew) we received a Brake OVHT message with the LH OB Brake Temperature Monitor System (BTMS) reading 20. The reading returned to normal within about 2 minutes; no wheel fuse plugs blew; and all other brake indications were normal. A mechanic reset the BTMS and signed off the logbook with operations check normal. On the next takeoff; we received a brake overheat warning when above 80 knots but below V1. I continued the takeoff. We left the gear down momentarily. Before we got to 1000 feet AGL; the warning went away and the LH OB BTMS went to dashes.After a brief discussion about the indications; I elected to raise the gear. We consulted the QRH; but with no more warning indication; we continued to [destination]. Several minutes later; while cruising at FL200; the Brake OVHT warning reappeared. We ran the QRH and extended the landing gear. Over the next few minutes; the LH OB BTMS oscillated several times between dashes and red value of 20. To be conservative; I elected to keep the gear down; [advised ATC of emergency condition]; and proceed to [destination] runway XYC (10;000 feet long). We informed the FAs and passengers about what was happening. Landing was uneventful; but we did have CFR check the brakes for any signs of overheating before we taxied to the gate.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.