Customer complain of unit icing up over the weekend Inspect unit to have 3 filter in unit with low airflow setting and restricted filter Customer removed and replace Check pressure amps on fan and compressor Check run cap relay and contactor Check airflow setting and temp split Data log info inside control bay Unit running propoly at this time of service in cool Customer signed up for maint First maint performed Today Possible Reversing valve / txv issuse Recommend follow up visit to recheck pressure