Customer stating upstairs unit not heating. System upstairs is a heat pump/air handler from 2007. Inspected upstairs system air handler and outdoor heat pump. Checked heat strips, wiring, and drain line. Checked capacitor, contactor, wiring and charge which we found that they system is low on refrigerant which is R22. Evap coil is rusted and there is a leak at the Schrader core at true suction side. No safety switches on upstairs. Dirty blower wheel…. No repairs available for R-22 only option is replacing. Inspected main floor/basement system which is a 4 ton air handler and 3.5 ton heat pump. Checked wiring, heat strips, and voltage for condensate pump not hooked up . No emergency drain pan for condensate pump . No emergency drain pan under air handler , nor safety switches. Thermostat wiring to main floor thermostat is not hooked up so basement thermostat is controlling both floors . Condenser coil needs cleaning. Disconnect is needing replaced . System is oversized for main flo