2013 Rheem 2 systems Checked pressures. Checked voltage and connections throughout. Checked amp draw on compressors and fan motors. Checked safety switches. Cleared drains. Checked heat strips. Evaporator coils on both systems are rusted. The primary drain pan in the upstairs system is rusted as well. This could possibly cause the air handler to flood when AC is being used. Due to the age of the systems, the condition of coils, and loss of efficiency replacement is recommended. Mrs. Potts is going to discuss later with her husband. Will also call to schedule a time for a comfort advisor to price replacements when they will be in town.