How it works: Enter your appliance’s model number and describe the problem. The calculator looks up your model and returns four things: the appliance’s age, its original or replacement value, how many more years it’s likely to last in Hawaii’s climate, and a repair cost estimate — then gives you a straight repair-or-replace recommendation based on those numbers. Covers refrigerators, freezers, washers, dryers, dishwashers, ranges, ovens, and microwaves.