Fridge/Freezer random shutdown. I have a Whirlpool GD25DFXFW02. Just recently, the fridge and

Question

I have a Whirlpool GD25DFXFW02. Just recently, the fridge and freezer will suddenly stop working but still has power (lights and ice despenser continue to function). If I turn the thermostat down to 0 (off) and turn it back up to 3, the motor kicks back on and things are fine again (for a day or two). I'm guessing it has something to do with the thermostat. Any ideas?

Schematic: http://www.us1internet.com/GD25DFXFW02_28434.htm

Thanks,
Greg