Having dealt with fridge issues for over 20 years, I have found that modern fridges have issues when you stress it, like going from an empty fridge to a ton of

Having dealt with fridge issues for over 20 years, I have found that modern fridges have issues when you stress it, like going from an empty fridge to a ton of warm cans, or not running the A/C in a humid summer. Turning it off for a while, melted the frost buildup, and emptying the tray in the back would usually fix everything. Also keeping it full with cold liquids helps.