Maintenance Bethlehem. Completed maintenance on 5 year old system. Found blower slightly dirty. Filter is good. Cleared drain line. Air flow and temp difference is good. Cleaned out door unit. Pressures and electrical components are good. Indoor system missing back up water safety device. Outdoor unit would benefit from having hard start kit installed to assist compressor with start up and allow compressor to live longer. Also recommend electro static filter to better filter air and keep system and home cleaner longer.