How to Troubleshoot & Replace Whirlpool AP6005548 / WP12722803W Refrigerator Vertical Mullion Door Divider

Purchased replacement door component. AppliancePartsPros shipped almost immediately, as promised and I had the parts in hand overnight. Repair was easy. No instructions provided because none were needed. One screw needed removal and an electrical plug removed. Greatly approved appearance of the refrigerator. 

Ordered two parts & easily installed them .. All fixed & I'm a 70 yr old grandma. ?? 

Easy fix. Took me 5 minutes. just needed a 1/4" socket. 

The correct part arrived on time and repair complete 

Removed the old one and replaced it with the new one 

I watched video PK/Lesson and approached project comfortably. The lesson plan was very explicit. The project took about 20-25 minutes. The video instruction was excellent. 

After 15 years of use, the pivot block and flapper door had worn to the point where closing the left side of the refrigerator was becoming difficult and it would stick. Buying new parts cost a little over $200, but as this is less than 1/10 the price of a new refrigerator, it was worth it. The removal and re-installation of the pivot block were super easy, just two screws and the pivot block was out. The replacement was also easy. The Flapper door was only 1 screw, and the video detailing how to replace the flapper door was very specific and easy to follow. I only had to watch it once. This repair can be easily done with a single 6 in 1 screwdriver. I would recommend an addition to the video instructions. Since the screws are metal and the frame of the refrigerator is plastic, I would recommend that DIYers, when re-inserting the screws, slowly turn the screw BACKWARDS until it clicks then screw the screw in. This procedure more precisely aligns the screw with the previously cut threads in the frame and prevents the hole from stripping. 

I replaced the gaskets on both of the top doors, and replaced the mullion piece on the left door. I watched the video provided on this website, which was minimally helpful because my replacement part was not similar to one used for the video. Luckily my part was actually easier to replace than the one used for the video. No instructions were included with my order, so I searched for other videos online. All was fairly easy. Took about an hour to replace the two door gaskets and the mullion piece but would have been quicker if we knew what tools we needed before hand. Everything looks great now, but I feel the seal on the doors should be tighter. 

Removed screw from mullion, lifted mullion up a little and then unclipped the wires. Replaced mullion , hooking wire clip back together first and then lined up the areas that hook back on fridge. Also removed left door by removing top hinge screw from fridge top(hinge stays screwed on top of fridge door), and unclip wires and water line if there is one just by unhooking clips. Lifted door up(after taking condiments from inside door), and laid the door on the table. Removed the broken hinge bushing and inserted new bushing. Set the door back on the bottom hinge and replaced screws on the top of fridge through screw holes in top hinge on top of door, and replaced plastic hinge cover. Done ! It worked perfectly. It helped me tremendously by watching online videos. I had no idea what a mullion was before this ! I'm female and this was pretty easy ! I had to find a picture of how the fridge door was put together so I would know what parts were needed. 

Ordered the 14 year old part on line which arrived in 2 days! Removed the one hex head screw, disengaged the 2 keeper brackets and unplugged the light switch plug. Installed the new part in reverse order. took less than 15 min.