Most Electrolux problems build up slowly rather than arriving all at once. A dryer vent narrows a little more with every load until drying starts taking two or three cycles. A refrigerator’s PureAdvantage filter loses effectiveness well before its indicator forces the issue. A front-load washer’s door gasket collects moisture until an odor sets in, and a dishwasher’s lower filter clogs gradually until dishes stop coming out clean.
A maintenance visit catches those while they are still small, inexpensive jobs rather than a full failure. It pays back the most on the appliances that run the longest hours in a typical home — refrigerators and front-load laundry pairs — and on dishwashers in areas with hard water.