Today the blower motor was replaced in the suspended unit (s/n ending 9902). The unit was operated and the system was checked. This is a twin system and both units were operated at the same time to check heating function temperatures. The split temp was elevated and there were multiple supply diffusers taped off. The tape was removed to increase airflow and bring the temperature back into proper range. In addition to this the new motor was matched with a new and tested capacitor and while the blower assembly was out of the furnace it was cleaned with compressed air. The furnace is operating within the manufacturer’s specifications. Thank you, Jon