As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
RECEIVED RT PACK HIGH TEMP CAUTION. MESSAGE DURING CLIMB WITH PACK IN MANUAL MODE. FLIGHT ATTENDANT REPORTED A BURNING SMELL/FOG IN THE CABIN. QRH ACTIONS RETURNED TEMP TO NORMAL RANGE, ALL ASSOCIATED CONDITIONS RETURNED TO NORMAL. PERFORMED OPS CHECK OF RT PACK IAW CRJ 200 AMM 21-51-00. COULD NOT DUPLICATE. OPS CHECK OK AT THIS TIME. A/C OK FOR SERVICE.