How to Troubleshoot & Replace Ge AP2596112 / 40A15 Light Bulb (40W)

First the ice maker bin overflowed with ice and somehow a piece of ice fell into the fan and broke one of the three fan blades, when I removed the ice bin it was over full and the drive cup for the auger was cracked and missing part of it. after I received the parts I had to empty the freezer and remove all the shelves, supports and rear panels of the freezer to replace the broken fan blade and reinstall everything.this took about 2 hours. then I took the ice bin apart to replace the rear drive cup on the auger. that was easy. also I replaced the freezer light bulbs.this job is not for the average person! I was a A/C/R Tech.for 45 years so I did not have to call a repairman. The Refrigerator was a GE side by side 

Watched your videos on each part location saw online comments from others and fixed it . Took more time cleaning the ice build up then replacing parts 

Replaced the Defrost Heater and Bracket Assembly, this could not have been any easier. Seriously! Problem solved! Watched the video, verified the part for my frig, 2 days later... done! (I am a big guy, so I had some assistance with my son in law to finish some details.) he is a small framed guy) 

By replacing the water valve. 

I noticed the door switch on the refrigerator side activates the refgerator light and also activates the temperature control panel and when the door is open for a certain amount of time it the damper between the refrigerator and the freezer on the top of the refrigerator closes and no cold air from the freezer blows into the refrigerator to cool it on the top. I order the switch from appliance parts pros in came in 2 days. It took about 5 minutes to pop the old switch out and install the new switch. The refrigerator has been working perfectly since I installed the switch.