Preventative maintenence inspection on Trane Tam9 air handler unit running in great condition. 20x22x1 air filter in new condition. Inspect blower and electric heat stip compartments for any loose or damaged wiring and components. None found. Test ran operation of electric heating strips and heat pump heating. Electric heat strips are operating properly and within Amp draw specifications. Heat pump heating tested by non-invasive refrigerant test by testing refrigerant line temperature. Temperatures are within spec based on outdoor temperature. No issues found or suspected at this time. System is operating properly, efficiently and ready for Winter.