First replaced the main board in back. Better but not repaired to full status. Gained access as per your videos to Defrost limiter and Defrost heater parts, which incidently both checked full continuity on ohm meter. Discovered my bought new GE refrig had double element heater as original part, but Limiter had already been replaced as wires were cut and speed nuts utilized with no silicon sealent in evidence. Evidence that Lowe's had sold me a repaired or returned refrigerator and represented it as New. Refrigerator now functioning as per a new model. BTW while in back of unit I brushed the coil by removing the fan with a soft baby bottle brush and shop vac. Then lubricated the bearing with a drop of transmission fluid. Runs extremely quiet-no noise at all. Quite a bit of dust collects INside the coil. I would suggest, IF, you know how to balance the fan blade it's plastic and quite a simple job. Same with the fan and blade in the front side in the freezer compartment. Do not over tighten screws retaining the front cover to the evaporator coil in the freezer compartment, snug but not torked as the tabs in the coil assembly will easily pucker and lose lock capacity. The cover plenum on the bottom back side of refrigerator fan is a booger to remove and replace, but access can be accomplished by reaching over and behind the compressor. I used a flex shaft and 1/4 inch deep well socket and still had to say the magic words a few times. The back screw is hidden from sight and you'll have to feel for it. Refrigerator is now cycling cold/defrost cycles as it should, it runs quieter than new, and thermostat settings over door in refrigerator section are both set on three and doing nicely to keep freezer producing ice, and refrigerator keeping milk fresh and other products at proper temp. I must compliment the staff and salespeople. Shipping is fast-ordered one morning received parts next day weekday. Main board ordered on a Friday took longer but that was Fed-Ex normal weekend lag. Altogether with website nfo and videos and staff helping to get right parts I highly recommend your service to anybody with the skill set necessary to change a spark plug in a lawn mower should have no problem. Considerable savings on parts and I did not have to pay a technician to guess at what was wrong with my refrigerator. Watch the videos and save money and time Appliance Parts Pros have got their act together and I will use this service again if needed.