GE fridge - won't cool; freezer and lights and fans work?

My GE fridge (21.6 cubic ft., Frost-Free model #TBX22RKB) stopped running. The light is on and the freezer works. I flipped the circuit breaker off and on and it started working again, but only for a couple of hours before the problem repeated. Is it the compressor, a relay switch, or something else? (If this seems an intelligent question, don't be fooled: I'm an idiot! If there's not a "simple fix" please tell me so I can call a professional!)
AJ Lloyd, April 2005
I'm having the exact same problem. Do you ever find a solution?

Pat, February 2008
Hi,

A simple fix would be to make sure the condenser coils under the fridge are clean from any dust buildup. That's what I would try first.

JP, April 2005