As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
DIVERTED TO CLE DUE TO SMOKE IN THE COCKPIT. *S/D* A VISUAL INSPECTION OF THE RECIRCULATION AND EQUIPMENT COOLING FANS WAS PERFORMED. THE FANS WERE OPERATED (ONE AT A TIME) WITH NO SMOKE OR SMELL. THE PACKS WERE THEN RUN OFF EACH ENGINE INDIVIDUALLY AND OFF THE APU WITH NO SMOKE OR SMELL NOTED.