Water under the freezer section of a fridge can be caused by a few different factors. Here are some possible causes to consider:
Clogged or frozen defrost drain: The freezer compartment of a fridge typically has a defrost system that melts any ice buildup on the evaporator coils. The melted ice should flow down a drain and into a pan located underneath the fridge, where it evaporates. If the drain becomes clogged or frozen, the water can back up and accumulate in the bottom of the freezer or leak onto the floor. Cleaning the drain or using a hairdryer to melt any ice blockage can often resolve this issue.
Damaged or misaligned defrost drain pan: The drain pan underneath the fridge collects water from the defrost drain. If the drain pan is damaged, cracked, or not properly aligned, it can cause water to leak onto the floor. Inspect the drain pan for any signs of damage and ensure it is properly positioned and secured.
Improperly sealed freezer door: A faulty seal on the freezer door can allow warm, humid air to enter the freezer compartment, leading to excessive frost buildup. When this frost melts, it can result in water pooling under the freezer. Check the gasket around the freezer door for any damage or misalignment and replace it if necessary.
Malfunctioning or overflowing ice maker: If your fridge has an ice maker, it's possible that there may be a problem with the water supply line or the ice maker unit itself. A leaking or overflowing ice maker can cause water to accumulate under the freezer. Inspect the water supply line for any leaks and ensure the ice maker unit is functioning properly.
If you are unable to identify or fix the issue yourself, it's advisable to consult a professional appliance repair technician. They can diagnose the specific problem with your fridge and provide appropriate solutions.