T.O. ADC ESTIMATE ON AN AIR DUCT CLEANING. INSTALLED A REME ERSA, ATTIC INSULATION. MADE SURE WORK WAS DONED CORRECTLY, AND WORK AREA WAS LEFT CLEAN WHEN JOB WAS FINISHED. CHECK THERMOSTAT, AIRFLOW, AIR FILTER, AND ALL ELECTRICAL CONNECTIONS. EVERYTHING IS WORKING FINE.