INSTALL NEW MARS ECM UNIVERSAL CONDENSER FAN MOTOR. 2 YR WARRANTY TESTED SYSTEM IN HEATING TO VARIFY SYSTEM IS RUNNING PROPERLY. AT THIS TIME THE EQUIPMENT IS RUNNING WITH A 29 DEG TEMP SPLIT. THIS IS NORMAL FOR THE CONDTIONS THE UNIT IS CURRANTY RUNNING IN. NOTE: THIS WINTER HAS BEEN COLDER THEN THE PAST FEW YRS. THE SYSTEM IS A HEAT PUMP AND DOES NOT HEAT AS WELL WHEN THE OUTDOOR TEMP IS BELOW 40 DEG. THIS IS NORMAL FOR A HEAT PUMP ROOFTOP PACKAGE UNIT.