Freezer condenser frosting up - 2nd ADC purchased

This is the 2nd time I replaced the ADC, the freezer condenser was frosting up again and wouldn't keep the freezer or refrig cold. 1st part only lasted 6-months. The simple fact is that the ADC used in the Maytag as well as others is under designed; I purchased 2-this time, 1's a spare, and you know it going to need to be replaced again. Sadly I'm stuck with this Refrigerator for at least 2-years before I buy another, it's only 5-years old. From my experience (with other Maytag products I've purchased recently) I'd never buy another Maytag product, ever! Since Whirlpool bought Maytag, I'm taking Whirlpool off my list too. Thanks Partselect for such a speedy delivery on the part everything back to normal, at least for now, wished I knew how long this ADC will last?