Using the same thermostat for both a fridge and a freezer is not recommended, as fridges and freezers require different temperature ranges to function correctly and keep the contents at the desired temperatures.
A fridge operates at higher temperatures, typically around 0 to 4 degrees Celsius (32 to 40 degrees Fahrenheit). This temperature range is intended to keep perishable foods cool and slow down bacterial growth, helping to preserve food for a shorter period.
On the other hand, a freezer needs to maintain much lower temperatures to keep food frozen and prevent spoilage. The ideal freezer temperature is usually around -18 degrees Celsius (0 degrees Fahrenheit) or lower. This low temperature inhibits bacterial growth, prevents freezer burn, and allows food to be stored for an extended period without significant loss of quality.
If you were to use the same thermostat for both the fridge and the freezer, you would have difficulty achieving the appropriate temperature ranges for each appliance. Either the fridge would be too cold, causing food to freeze, or the freezer would be too warm, resulting in thawing food and potential safety risks.
Modern refrigerators and freezers come with separate and specialized thermostats to control the temperature of each compartment independently. This ensures that the fridge and freezer maintain their respective temperature ranges, allowing them to function optimally for food storage and preservation.
If you're experiencing issues with your refrigerator or freezer temperature, it's best to have a professional technician inspect and repair the appliance to ensure it operates correctly and keeps your food safe and fresh.