[Sheila King]

My Freezer Gets Frosty But Is A Frost Free Model. The Freezer Part Works Well But The Refrigerator Part Does Not Stay Cold Enough. Have Tried To Turn Off And Let Frost Melt Overnight And It Seems To Stay A Little Colder For A Few Days But Not Cold Enough To Keep Food In Most Of Time. Usually About 40 Degrees.

[woodchuckie]

I
check defrost timer, defrost heater, defrost thermostat

Refrigerator Repair Guide: How To Fix a Refrigerator - ACME HOW TO.com

Timer is part 12 here on the diagram of your controls.
Replacement parts for MAYTAG MTB1954ARW | AppliancePartsPros.com

[denman]

Where does it get Frosty?

Some frost on the evaporator coils is normal or are they getting iced up?

Here is a good site with basic info
http://www.applianceaid.com/refrigerator.html

Also is the fan in the freezer running?

[darrela]

I have identified the parts that might be a problem ie heater, thermostat, and adb (adaptive defrost board) I can test the heater and thermostat but need to know how to check the board.

Thanks in advance
Darrela

[denman]

Here is a tech sheet that is a MTB1954, rest of digits not the same as yours but the forced defrost should be the same
https://www.servicematters.com/docs/...0W10142143.pdf