Amana fridge model # abb1921dew wont get cold top or freezer

SOURCE: Bottom of freezer/fridge only getting cold.

Thre is a fan inside the freezer which circulates the cold air around both the fridge and the freezer compartments.
You should be able to feel cold air blowing around the inside, particularly at the top of the freezer.
If the defrost thermostat fails open, the internal fan (depending on freezer) will stop and this can be the cause of the freezer being warm at the top and no ice.
You say the bottom of the freezer is blowing cold, but are you sure its blowing, as it can feel like a cold blow. Of course the fan could have failed or may be the defrost heater itself.
Have a look at this site for some useful trouble shooting
And a good site for troubleshooting and general info
Refrigeration Help Section, Fridges, refrigerators, not cold enough, frost free problems and how to test, noisy fan motors, clicking on and off compressors, door gaskets
Nige

SOURCE: anama bottom freezer

Chances are if they are getting cool -

1) the evaporator fan in the freezer is not running
2) Defrost heater has failed
3) Defrost sensor has failed
4) Defrost timer/refrigerator control has failed.

Check for ice build-up on the back wall of the freezer. If there is ice, unplug or turn the unit off for 6-8 hours with the doors open (put any food in a cooler with ice to maintain). Note water may come out of the refrigerator/freezer.
Plug the unit back in or turn it back on, close the doors, and check temperature after a couple of hours of operation. If all OK, you will need to have the above tested, or, if you know how to use a multimeter and can read a schematic/wiring diagram, I can instruct you on how to check the above.

SOURCE: amana bottom freezer problem

It sounds like the condenser coil might be freezing up. This happened to me on my bottom freezer. The cooling part of your fridge is only in the back of the freezer compartment. The cold air from the freezer blows up through a vent in the back to the fridge and comes out at the top. If the coils do not defrost (which is what happened with mine) the air flow is blocked by the ice and can't get to the fridge compartment. Your freezer will still be cold but your fridge won't. If you pull the plug on it and time things right you can defrost the coils but this will only postpone the problem. Both will work for awhile again until the coils ice up again. You can also pull out the freezer drawere and try to defrost the coil with a blow dryer. You have to disconnect the icemaker and pull out the back panel behind the freezer to get to it though.

SOURCE: Side by side Amana freezer/fridge. When you close

Possibly need the hinges adjusted.

SOURCE: Fridge not getting cold enough

The cold from the freezer is piped up to the refrigerator and if that tube gets clogged with frost or ice it will not be able to blow to the cold air into the refrigerator area. I took everything out, unpluged the unit for about 6 hours, till all the frost from the freezer was gone, wiped up all moisture and turn it back on. It worked!