Heating tune up performed on a five year old Amana heat pump with air handler. Arrived to a failed 50/5 dual run capacitor that was preventing the outdoor unit from turning on. Replaced capacitor under warranty and performed function check. All electrical connections are tight with no corrosion. Filter is dirty and needs to be changed. Customer is aware and will change it when the new filter comes in. Refrigerant levels are in range. Reversing valve and defrost control board are working properly. Heat strips are pulling proper amperage.