Why does the CoolFun MB40 freeze the contents and how to regulate the temperature?

Question

Accepted Answer

The PDF of this manual for the CoolFun MB40 model does not mention programmable temperature control. The CoolFun MB40 is a basic thermoelectric cooler that operates continuously and cools up to 22°C below ambient temperature - without a digital thermostat.

If you observe that the contents are freezing excessively:

Check your environment - The lower the outside temperature, the more the device cools strongly. In a cool environment, cooling can be very intense and freeze food.
Ensure good ventilation - Check that the rear ventilation grilles are not obstructed. Insufficient ventilation can reduce efficiency and cause problems.
Partially insulate the contents - You can place a towel or cardboard between the cold walls and your food to limit direct contact and excessive freezing.
Limit operating times - The MB40 is designed to cool, not to freeze. Do not use the device for extended periods without checking the condition of the contents.

If you have a special version with adjustable thermostat, refer to the dedicated section of your user manual for adjustment instructions.

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