I am only on my first fridge from 2014. It’s a Samsung French door with freezer on bottom. I’ve replaced the mother board, the ice maker, applied silicone sea

I am only on my first fridge from 2014. It’s a Samsung French door with freezer on bottom. I’ve replaced the mother board, the ice maker, applied silicone sealant to the ice maker housing, and installed a drain heater in the main coil compartment to augment the defrost heater (saw this on you tube to prevent ice over). After all this, it’s been working fine for a couple years. Hope I don’t have to buy another fridge for a long time.