AEG Condenser dryer

Have an AEG dryer in workshop 56600 Prod 91601409901 which if set on extra dry with mixed load only damp dries and most of the warning neons light up. Have checked brushes on top and rear, sensor strip is clean, inside of drum looks clean, condenser cleaned, etc. Looked at distriparts disc for guidance but doesn’t seem to help. Should it stop at end with neons lit to remind customer to clean out although it would seem odd for condenser light to come on every time?