[navila17]

Does the fridge have a variable speed compressor? If so, that type is meant to run the compressor more than old-tech binary on/off compressors. Running 90% of the time might be normal if it's variable speed.

I can go into more detail if you want. But to be clear I'm not making any claims on how long it will last.

[nagisa]

Don’t compressors generally dislike being cycled on-off (too frequently/quickly?)

I was under an impression that they should ideally run continuously if you want them to last long (and operate efficiently.) Meanwhile on-off cycling was just the only way they could maintain a temperature setpoint before somebody had a bright idea of combining them with an inverter.

[bluGill]

Start and stop does the most wear per unit of time, but constant motion also does wear.

Start and stop tends to cost a lot of energy, and high speed also tend to need more power. High speed also does more wear. Overall though, a small compressor on high speed 100% of the time is better than a larger compressor on lower speeds most of the time - but that isn't a realistic option as there are too many variables to allow choosing the perfect compressor size. So a oversized compressor running at low speed most of the time is generally best.