DCM3: AC complete, replaced (1) 20x25x1 and (1) 14x25x1 filters checked 20x25x4 filter. Upstairs system is fully functional and operating within manufacturer specifications at this time, refrigerant pressures and temperatures are appropriate for indoor and outdoor weather conditions. Temp split 18* Main floor system is functioning properly and operating within manufacturer specifications at this time. Found indoor blower wheel and coils dirty, however refrigerant pressures and temperatures are appropriate for indoor and outdoor temperatures. Blower wheel and coils being dirty can cause airflow issues causing system to freeze up. Due to age of equipment multiple part failure is possible at anytime. Sunroom system is functioning properly however is not operating within manufacturer specifications due to indoor capacitor being out of range. Refrigerant pressures and temperatures are appropriate for indoor and outdoor weather conditions. Indoor blower wheel and coils are both dirty. Du