Arnold Howard wrote:
Thanks for the suggestion, Paul.

I have not found a drain tube in the freezer. I removed a plastic cover
from the floor of the freezer. Under it was a slab of 1/4"-thick ice,
which I removed. then I removed the back cover of the freezer but still
did not find the vent pipe.

Any other suggestions?

Thanks,
Arnold


Look under the refrigerator. There should be a plastic tube going to a
evaporation pan. It may just be that the tube froze up. It happens due
to the auto defrost cycle of the cooling tubes.