2018 Lennox Airhandler Checked and tightened all electrical connections Customer recently changed filters Drains were clear and draining at this time Heatstrips were not functional and found the low voltage was wired wrong Blower motor and wheel were heavily compacted with dust and dirt Evaporator coil is completely restricted with dust, dirt, biological growth and leaves from the fresh air intake Filter is at ceiling instead of the unit so unfiltered air from fresh air damper is causing coil to get caked in all kinds of restrictions 2018 Lennox Heatpump Checked and tightened all electrical connections Fan cap was weak and below manufacture rseange Primary electrical unit was acceptable Defrost board was acceptable Defrost is functional Refrigerant levels are off due to indoor restrictions of air Fan blades and motor were acceptable Condenser coils were heavily compacted Cleared debris from the bottom of the unit Washed condenser coils from the inside out Recommended