What happens when there's a huge temperature change in fridge?

Question

So when my fridge is set at 2'C, does the fridge cooler activate (at 2'C as before) longer time then usual to meet the set temp.? Or does the cooler activate at a lower temp. (eg 0'C) for a while to meet the set temp faster?

Answer

Your question makes no sense. A refrigerator runs any time the thermostat is warmer than the set point. It cools down to the set point and stops.

Answer

If the maximum temperature is exceeded the appliance will struggle to keep the temperature inside down as described above and could be running constantly or at least for longer periods than necessary. This could cause overheating, breakdowns and higher energy bills.
If the temperature drops below the minimum stated on the climate rating (which is more likely) the freezer on a fridge-freezer controlled by only one stat may even switch off and defrost.

What happens when there's a huge temperature change in fridge?

Answers (2)