Water being generated; pools in bottom of cabinet and drips out from there.
There are only a few scenarios where the water is coming from to congregate there.
Condensation from putting food in there which is warm, especially anything not wrapped or bagged.
Defrost water drain blocked. Look for a channel at the back or within the blower unit. (this is the most likely)
Badly fitting, split or worn out door seal. This lets warm moist air from the room into the cabinet which then freezes.
Excessive frost build up reducing efficient circulation of air, or overloading.
Finally, kids spilling water!
on Jul 08, 2019