@snow @neil
The thermostat on my refrigerator failed.
There are so many models of 'stat that I can't find a proper replacement.
My solution was to hardwire it closed circuit (so the compressor runs continuously) then use a smart switch (much like yours) to switch it on for 15 minutes every hour.
In the summer I extend the time to 20 minutes every hour.
Two years on, it still works, the fridge thermometer is steady around 4C, and we've not got food poisoning yet ...
@sheddi @snow @neil Ditto mine.
Thermostat failed on, though, so nothing needed doing internally; just an external smart switch (Sonoff TH16) with a DS18B20 temperature sensor stuck in through the fridge door seal. ESPHome code to turn the fridge on and off at reasonable temperatures.
Only downside: fridge light doesn't come on when it's not running.
Using a temperature sensor, rather than just timing, is a plus when putting a load of shopping in to get it back down to sensible temperatures in a reasonable amount of time.
snow 
Sheddi
Ed Davies