GE Freezer Fan Not Running

Freezer fan no longer kicks on or off thus no cold air being circulated in freezer or down into refrig section. Freezer is presently 20 degrees; refrig 50 degrees. Do I need a new evaporator fan or what do you think has gone wrong here. I am keeping both doors closed as much as possible to retain coldness throughout. Recently lost job so absolutely need to fix myself. Any help would be greatly appreciated.
SH

Give me your serial# and I will be able to help you further.

Will have to try to hopefully obtain a volt meter from a neighbor. May not be able to get back to you on this step until tomorrow. Your patience will be appreciated. SH

No problem.

That test would show if the board is supplying voltage to the fan. Most likely it is a bad fan motor, here is that part------->http://www.appliancepartspros.com/part_details.aspx?part_id=3185048&pn_=WR60X10083

Need help to pull tub and replace seal and bearing. How do you remove agitator?