As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
THE AIRCRAFT RETURNED TO THE FIELD FOLLOWING A LEFT HAND PROPELLER HEAT FAIL WARNING MESSAGE. MAINTENANCE INSPECTED THE PROPELLER HEAT SYSTEM AND REPLACED THE 17VE PANEL AND CLEANED THE NP SENSOR CANNON PLUG CONNECTORS. OPERATIONAL CHECKS WERE COMPLETED.