Preventative maintenence inspection on Bryant air handler unit. Current 20x20x1 air filter is in good condition. Left new 20x20x1 air filter with other new air filters. Inspected air handler for any loose wiring internally. None found. Checked over system settings to verify proper setup. Test ran operation of electric heat strips. All strips are operating properly. Tested operation of heat pump heating. Did not check refrigerant as there is no issues suspected. System is operating properly, efficiently and ready for Winter.