4YET20DKXAN00 Whirlpool Refrigerator - Instructions

The first part I changed was the defrost timer but it did
not solve the problem, I replaced the bi-metal defrost sensor
and I have the same problem.

I can defrost by turning the clock manually and heater works.



























problem.

I just replaced my defrost thermostat after using the place-in-ice-water method, and I think it may not have been necessary. My timeline: my fridge was not getting cold enough. I realized it the day before going on a trip. I vacuumed the (very dusty) coils at the bottom, and the next morning the fridge seemed colder, but I thought I should order parts just in case. I ordered a heater and a thermostat. The fridge seemed to be operating normally when I returned from my trip, but I had the parts, so I thought I'd go ahead and dismantle the freezer and test the existing parts. My intention was to return both parts if the old ones passed the tests. I opened up the back of the freezer and there was no ice on the fins. I thought, great, the existing heater works! I cut out the thermostat, placed it in ice water, and didn't get continuity. So I decided to go ahead and put in the new thermostat. Because I'm not experienced with using a multimeter, I thought I'd test the new thermostat to see how the test should work. To my surprise, the new thermostat also failed the test! Stumped, I thought I might as well install the new thermostat, since I had opened the package and couldn't return it.
Further internet research suggests the place-in-ice-water method of testing is not adequate. One YouTube video by Parts Dr says to place the part in a working freezer. I froze my old thermostat and tested it; still no continuity. This thermostat may not be typical, though. The video discussed the temperature ratings on thermostats. The temperature rating on both (old and new) thermostats is L8.9-16.7C. That converts to 48-63 degrees fahrenheit, which obviously are not freezing temperatures. I'm not convinced I needed a new thermostat, but I trusted the videos I consulted earlier.
I cleaned the fridge thoroughly, so at least now I have a nice clean fridge to show for my efforts.

Followed video and had one problen, the metal pipe would not release as shown,so I used a hacksaw between the plastic and metal pipe, removing the metal pipe from inside as the video shows. Good instructions.

Very easy. Left the front of the refrigerator so it is approx. 4 inches of the floor. (used a two by four. Removed the screws (one for each roller). Removed the rollers and replaced with new rollers. Reinstalled the screws with secures the rollers to the refrigerator. Done

Simply took broken pieces of old stud out and replaced with the new ones. Used pliers to adjust them. Replace a freezer stud and a fridge stud.

I pulled the socket out and unplugged the wires. I replaced the light socket by plugging in the wires and snapping the light socket into place. A very simple fix.

I removed one bolt and took out the old roller after first blocking up the fridge. Then I was puzzled for a moment because the hole in the new assembly was not tapped. But then I saw that the old bolt was a self tapping bolt. I used it to tap the hole then removed it and installed the new assembly. No sweat job.

snapped the new ones on the aluminum bar and inserted into the freezer

I simply slid off the broken supports, and slid the new ones on.

replaced ice maker with recommended add on kit. easy to replace exact replacement. used this company for washing machine part. parts correct both times.

Replaced missing stud.

This was really easy to do thanks to comments posted on the Partselect web site and the instructions included in the package. I removed three screws, unplugged the wire harness using a small screw driver to "unlock" the harness, removed the old ice maker assembly from the freezer, and reversed the process with the new assembly. Saved the valve and other parts for future use. The new unit started making ice within an hour or two. Very cool!

Took three screws out of the old ice-maker, disconnected the electric pigtail in the freezer, shut the water off, removed two mounting screws on the water valve (back & bottom of fridge), used a wrench to remove the water lines.
Put new valve on, reattached water lines, connected electric pigtail to ice-maker, put 3 screws back in to mount ice-maker, turned the water on and had ice in about 6 hours.
VERY EASY - All the parts for various installation were included and the instructions are easy to follow.

Simply removed the old and replaced with the new part.

I removed the broken end cap and then I snapped the metal shelf onto both end caps and replaced the shelf.

I really must say that dealing with PartSelect was exceptional. It took about three days for me to get the part and, prior to that, it was very easy for this sidewalk fixer to locate the correct part on their website. Thank you for your excellent service.