Amana AFF2534FES Stainless Steel Bottom Freezer French Door Refrigerator "gas water heater hissing" Questions

Amana fridge french doors making a hissing sound seems like leaking gas from the freezer it seems to work fine but be leaking gas Could be water dripping on the heater when defrosting

...where all that water goes...well it goes to a drain pan on the bottom of the ref which is evaporated by the fan that blows across it and the heat that comes from the compressor and hot gas