Arrived today for no cooling on upstairs system. 2009 3 ton Rheem gas and air conditioning system. Found indoor coil leaking Freon. Thermostat wire is run inside drain line. You can’t do that it isn’t up to code and it restricts the water from leaving the drain line. System is 16 years old highly recommended upgrading system but give customer options. Consultation fee. Customer stated he wants me to call him back Wednesday.