Heating maintenance in Decatur. Tested operation of heat pump system. Discovered burnt main electrical switch in outdoor unit. Secondary motor control are starting to weaken but is still within manufacturing spec. Discovered organic growth inside and where unit. Ducts really need to be cleaned As well as blower wheel and evaporator coil. System needs drain line water safety and could benefit from an easy trap for easier cleaning flooding. Attic insulation is insufficient. System is heating at this time