Super tune up performed today on a two year old ducane heat pump with down flow air handler. All electrical connections are tight with no corrosion. Customer requires two fi,ters for the unit. Customer had a 20x30x1 that was changed out but did not have an 18x30x1 for the door filter. Door filter needs to be changed as soon as possible. Blower motor is acceptable. Refrigerant levels are in range. Heat strips are pulling proper amperage. Outdoor unit was washed and waxed.