Hello:
I have a bottom freezer Amana model BM20TBW fridge with a frost problem
in the freezer. Frost is building up near the front of the icemaker in
the corner. Sometimes, maybe once a week, there is a very small puddle
of water at the bottom of the freezer door.
I assume defrost cycle is not working? Can you troubleshoot this with a
DMM (continuity of switch, motor, etc)?
Also, where is the defrost motor?
Thanks for any help,
Bill

Competent help and parts are available at repairclinic.com/
Give them a try. Good luck.

joe