How to Troubleshoot & Replace Ge AP3185407 / WR55X10025 Refrigerator Temperature Sensor

I when online and googled for problems and found several problems and there were videos showing how to test for the problems. I when to Home Depot and brought a ohm meter to do the test. I had never used a meter before but the videos make it look easy. After I ran the test and found was the problem as. I got online and chatted with a tech to confirm my results. The service tech was very helpful on the online chats that I did on a Sunday night about 8pm. The part came in about 2 days and the it was an easy fix. 

I replaced the thermostat in the freezer first. That did not fix it so I ordered the thermistors and installed them. Freezer works fine now. I suggest using heat shrink tube on the connections to keep moisture out. If the freezer coils have ice build up on them I would melt it off with a hair dryer before closing everything back up. 

I followed the trouble shooting procedure as outlined on your website. I determined that the temperature sensor was bad, ordered the sensor, and replaced it. This is the best website that I have seen for troubleshooting any appliance. Thanks for the help. 

Replaced the refrigerator defrost heater and defrost thermostat. The repair video on YouTube was most helpful! Took me right through it and I did not experience any issues. 

My side by side fridge was not defrosting, and then would freeze up, and have to be manually defrosted, ordered new defrost heater, for my fridge, as well as a few other small parts for future service, this company ships OEM parts, very fast, they have a lot of chop, chop, replaced failed defrost element and all is well. thanks a.p. pros. 

Fridge and Freezer were getting too warm. Noticed frost on the back of the freezer and because of Appliance Parts Pros great site, I was able to diagnose a broken defrost heater in the freezer. Got the parts after two days. It took forever to defrost the freezer and then the evaporator coils of all the frozen ice and soak up the melted water with towels. But after the excellent video instructions by Appliance Parts Pros changing out the defrost heater was a breeze. Also changed out the Defrost Thermostat and Temp sensor in the freezer as well since I was in there. Videos for each of those made the repair very simple. Needed to go out and grab some wire nuts (didn't have any in the packs) but other than that the repair was seamless. Everything is working fine now. I'm pretty handy but have never done any repairs on a refrigerator but the instructions and videos helped a lot. Thanks AppliancePartsPros.com! 

Since this is a 14 year old appliance, I started with the least expensive, most common repairs with my particular model, exhibiting the same symptoms people described. I replaced the Defrost Heater and Bracket Assembly, the Defrost Limiter Thermostat and the 4 Temperature Sensors throughout the unit. Upon removing and inspecting the existing defrost heater, it was clearly damaged and worn, practically falling apart as I was examining it. The defrost limiter thermostat was discolored and also appeared to be worn and possibly damaged. The temperature sensors didn't look too bad, but the price was low enough to justify the repair as a measure of preventative maintenance. The unit started cooling immediately, but stopped at around 56F in the freezer, and got very hot to the touch in the center of the door frame, between the 2 doors. I called the number to talk to a technician, described the new problem and was advised that the rear cover should be removed and the condenser assembly thoroughly cleaned. It was pretty nasty in there and very hot. They offer a brush designed specifically for cleaning the condenser assembly, but I had one already and gave it a thorough cleaning. The unit cooled down immediately and in just a few hours was below freezing. The next morning, it was down to 0F and everything was back to normal. 

I consulted the APP website, and ordered the defrost heater, defrost thermostat and a new temp sensor. After unplugging the frig for a couple of days, the frost was all melted, and the repair was easy and uneventful. The jury is still out as to whether that procedure will correct the problem. I will let it run for a few days and check it again. Plan B will be a rebuilt control board 

After doing a lot of web searching about the problem. It all came down to AppliancePartsPros.com. Watching the repair videos and learning what to do made the job a breeze. The only difficult problem was to thaw out the ice build up on the coils, which took 2 hours. The rest was easy. now I have a freezer/ fridge that is working like new. The total cost of the parts was less then having a repairman come out to look at it. AppliancePartsPros saved me a lot of money. Thanks! 

There's a decent amount of credible advice on troubleshooting refrigerator problems on the web, and after several unrelated sources suggested that the symptoms I was seeing were likely caused by a bad main control board and probably a freezer temperature sensor I decided to replace both. I think it's a good idea to avoid taking any single web site's advice if possible. The main control board was very easy to replace - just read the instructions carefully because some models require snipping a wire on one of the connectors and also one on a connector down near the compressor. The sensor was a bit tricky to replace because once you cut the old sensor off you don't have a lot of wire to work with - maybe 2". Be prepared with some small butt connectors, the size I used was for #22 - #16 wire. Also, one tab on the plastic sensor cover broke when I was removing it, so if you're a perfectionist you might try removing that before placing your order. My time estimate includes web research and troubleshooting - installation time was about 25 minutes.