Arrived today for tuneup on air conditioning system. 2011 3.5 ton Rheem a/c and indoor coil. Furnace is 2007 Nordyne gas located in crawl space. Cleaned outdoor unit and drain pump. Found inducer draft motor making noise blower assembly needs pulled cleaning and 10mfd capacitor needs replaced. Furnace is 18 years old heat exchangers are rusted and have hotspots on them air conditioning is 14 years old. Gave customer options. But explained to customer could have problems in the future with it due to age of equipment.