Frost in frostless freezer, fan not blowing into warm fridge

Hi,
There are 2 things that cause these to not defrost. Kinda like the "Achilles heel" of GE fridges. The first one is the Defrost heater itself. And the second is the evaporator thermister (GE calls it a "sensor"). They are both very easy to replace. The part numbers are; WR51X10101 (heater) and WR55X10025 (sensor). If you don't have a local appliance parts retailer, just plug those numbers into a search engine. I highly recommend getting both parts because if the sensor hasn't failed yet, it will. The same goes for the heater...

Now for the fun stuff... Turn the temp knobs all the way counter clockwise to kill power to the fridge. Unload all the food from the freezer and remove all the shelves and the basket. Remove the screws that are holding the evap panel (the flat panel on the back wall, it's about 2 1/2 ft tall). Remove the panel to expose the evaporator. You'll see the heater at the very bottom of the evap connected by 2 screws, remove these and pull the heater out. Your new heater comes with instructions on how to install it.

After you have done that, look at the top of the evap. On the left, you'll see a little white sensor clipped to one of the evap tubes (shiny little clip), that has 2 wires feeding it. Remember which tube it's clipped to then unclip the sensor and pull it toward you. Snip the wires right at the base of the old sensor and completely remove it (leave the wires in there). Now separate those 2 wires and strip about 3/8" of insulation off. At this point, you are ready to follow the instructions that came with your new "sensor". Oh! and if it's all frosted up on the evap? Take this time (before you re-install the panel) to use a blow dryer and melt it away. All that'll be left to do is rebuild it.

There ya go! Job completion time= ~45 minutes. Easy breezy, right?

If this has been helpful, please don't forget to rate my solution. Thanks!

SG