I can provide some general insights.
If both the fridge and freezer sides of a refrigerator have dropped in temperature randomly, there could be several potential reasons for this issue:
Power outage or interruption: If there was a power outage or the refrigerator was unplugged accidentally, it could lead to a drop in temperature on both sides. Once power is restored, the refrigerator should start cooling again.
Thermostat or temperature control issue: If the thermostat or temperature control unit of the refrigerator is malfunctioning, it could cause erratic temperature fluctuations or prevent the fridge from cooling properly.
Cooling system problems: Refrigerators have complex cooling systems that involve compressors, condensers, and evaporators. If any component in the cooling system malfunctions, it can impact both the fridge and freezer compartments.
Overloading: If the refrigerator is overloaded with food items, it can impede proper air circulation, leading to uneven cooling and temperature drops.
Damaged or worn-out gaskets: The rubber gaskets that seal the fridge and freezer doors could become damaged or worn out, allowing cold air to escape and warm air to enter.
Ventilation issues: If the refrigerator's coils or ventilation areas are blocked by dust or debris, it can hinder the cooling process and cause temperature fluctuations.
If you encounter this issue with your refrigerator, it is essential to troubleshoot or have it inspected by a qualified appliance technician to identify the specific problem and make the necessary repairs. Maintaining the proper temperature in a refrigerator is crucial for food safety and to prevent spoilage.