As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED SMOKE TOILET MESSAGE AFTER TAKEOFF. QRH FOLLOWED WITH UNEVENTFUL LANDING NO SMOKE OR FIRE FOUND. MAINTENANCE FOUND NR 1 AND NR 2 AIR CYCLE MACHINE (ACM) COALESCER BAG TO BE DIRTY AND WET. REMOVED AND REPLACED COALESCER BAG PER BOMBARDIER AMM PERFORMED OPERATIONAL CHECK OF SYSTEM WITH NO DEFECTS NOTED.