If your freezer is leaking into the fridge and you cannot find a drain hole, there could be a few potential reasons for this issue. Here are some possibilities to consider:
Clogged or Frozen Drain Line: Although you mentioned that you couldn't find a drain hole, refrigerators typically have a drain line or channel that allows water from the freezer to flow into a pan at the back of the appliance, where it evaporates. If this drain line becomes clogged or frozen, water can back up and leak into the fridge compartment. Try locating the drain line or channel and ensure it is clear of any debris or ice. You may need to consult the user manual for your specific refrigerator model to find the exact location.
Improperly Installed or Damaged Drain Pan: The drain pan, located at the back of the refrigerator, collects water from the defrost cycle and other moisture sources. If the drain pan is improperly installed or damaged, it may cause water to overflow and leak into the fridge. Inspect the drain pan to ensure it is properly positioned and not cracked or broken.
Defective Defrost System: Refrigerators have a defrost system that periodically melts the accumulated frost on the evaporator coils. If the defrost system malfunctions, it can cause excessive ice buildup, resulting in water leakage. In this case, you might need to have a professional technician inspect and repair the defrost system.
Faulty Door Seals: Damaged or worn-out door seals can allow warm, humid air from the surroundings to enter the freezer compartment. When this air comes into contact with the cold surfaces inside the freezer, it can condense and form water droplets that eventually leak into the fridge. Check the door seals for any gaps, cracks, or deterioration and replace them if necessary.
If you have tried these troubleshooting steps and the issue persists, it is recommended to contact a qualified appliance repair technician or the manufacturer's customer support for further assistance. They will be able to provide specific guidance based on your refrigerator model and help identify and resolve the problem.