Arrived 14th of June to conducted air conditioning preventative maintenance inspected blower evaporator checked capacitor on blower capacitor was within tolerance checked contactor capacitor and hard start kit on condenser always within tolerance had one amp on condenser fan motor and 14 A on compressor this is a fixed orifice metering system had 20° Superheat and 7° of sub cooling system does not have a float switch installed customer is selling house and will let new customers deal with this problem. customer supplied filter changed customers filter.