The Whirlpool monopoly is a great example of planned obsolescences. They use cheap seals and plastic parts when they used to use steel. Most modern appliance seem to have a life span of 5-7 years because of electronics failure.

I had a Maytag ( owned by Whirlpool ) dishwasher, range and refrigerator all need repairs costing over $300 a device within the first 3 years. All of them failed within 2 -3 months of the warranty expiration.