Tested system with water leaking from the furnace. Found the evaporator coil pan was melted from unit getting too hot the when the furnace was turned on. This is due to a cracked heat exchanger! Furnace is not safe to run at this time. This system and the upstairs unit do not have any flood protections. Both condenser coils outside are extremely dirty and the capacitor is failing to the main level. Due to the age and condition of the furnaces on both levels, I did recommend replacement.