ZISS420DNBSS General Electric Refrigerator - Instructions

followed part select video instructions

I have a GE Profile French door refrig. It's only about 4 yrs old and the defroster stopped working. I read the other repair stories and was able to narrow it down to either the temp sensor, defrost timer, or main board. The refrig section was up to about 47 degrees and freezer was around 25. I could tell it was trying to cool but couldn't. So I tried the temp sensor first. I cut and spliced the new sensor on the outlet of the Evap. Coil and it took about 15 mins. Turned refrig back on and waited. The coil started to ice over after about 5 hrs I left the back panel off so I could see if and when then heater kicked on. After about 8 hrs I looked in and saw a faint glow and water trickling down and running out the drain. Turned out the sensor was bad and wasn't telling the main board it needed to defrost. I would try the sensor if you are having the same issues before spending a lot of money on the main board, defrost heater and or timer.

Followed the repair video, was spot on!!

luckly i have a bit of experience in refrigeration im an hvac technician by trade. this repair was a bit tricky in that i did not know at first if it was a Temperature Sensor issue or the main control board. I had tested the defrost termination thermostat and the defrost heater and as i suspected they were ok. Next i wanted to test the thermistors (temp sensors) it is hard to find technical data on these fridges. I needed to test the thermistors resistance @ a certian temperature to ensure they were working properly but where do u get such data? I also wanted to know some information about the logic programmed into the board (i.e when do you initiate defrost etc. . .). I had no such luck so i figured since i tested the defrost heater and thermostat and they were ok and all of the evap fans and such were working i'd order a circuit board and new thermistors. Got the CORRECT PARTS from this site in 2 business days and my fridge is working great! changing the parts was really easy, figuring out which parts to change was the only difficult thing about this job.

Replaced all the sensors in both the feezer and refrigerator.Even though it colder now it still is not cold enough.Freezer won't freeze items but is cold and refrigerator still not real cold

as per video

My son replaced both temperature sensors and the fridge works great now!!! Like brand new again!!!!

I identified the noise was coming from the coils / and the fan. Cleaning the fan helped reduce the noise a bit but it still kept recurring. I ordered the part, which was really easy using the diagram on the website. The instructions and the video were really helpful and was able to remove the old motor and replace it with the new one with relative ease. While there I cleaned the fan blade and vacuumed the surrounding area. This whole repair went quite smoothly and has given me the confidence to take on other repairs before calling out the repairman.

no brainer,watched the video,worst thing was to thaw the freezer,it was realy frosted,works like new,very happy thank you.

replace sensor in refriger.

Remove the shelves then remove the back by removing the two screws at the top of the panel. Locate the temperature sensor on top of the coil. Cut the wires and replace with the new one. Use wire nuts and electrical tape to reconnect the wires.

The repair is a snap, you can watch the video and it will put you on the right path. My story is more about the service that Part Select gave me. I used a small box fan on low as a temporary fix. My model number was worn off from the box wine we store in that particular place. So I ordered the part based on looks, well it was wrong. Called Part Select and we talked, the nice lady on the other end said OH it must be this fan motor. Send us back that one, and I'll get this out too you. I'll credit your account for $7.99, and it cost me $8.99 to ship back the wrong part. Wow, the next day I received the new motor. They sent it overnight! I thought it would be 5-6 days! Unbelievable. I will use this company for any, and all my repairs.

as per video- follow all of the videos and u r going to save a lot of money tx partselect im glad I found u guys ps only order from partselect.com they only ship the correct parts remember look at the video select the symptom and buy as per video tx again problemsolved

took out shelves and removed the back plate my removing 2 screws with a nutdriver.removed the old defrost timer and defrost heater which was really easy.then installed the new ones.the video i watched on the website was really helpfull.

1. Removed and tested defrost heater, tests good. 2. Reinstalled defrost heater. 3. Removed and tested defrost over-temperature sensor, tests good. 4. Reinstalled over-temperature sensor using soldering iron, dielectric silicone grease, and heat-shrink tubing. 5. Removed the control printed circuit board and checked for blown fuse's, fuse's are all good. 6. Removed the defrost relay from the printed circuit board using soldering iron, bench tested the relay, it is good. 7. Soldered defrost relay back onto the circuit board, and reinstalled control board. 8. Removed and bench tested evaporator thermistor, the resistance is out of specification, ordered new thermister. 9. Installed new thermistor using soldering iron, dielectric silicone grease, and heat-shrink tubing. 10. Re-assembled refrigerator. 11. Installed temperature monitoring and recording instrumentation for 72 hour test. The defrost cycle is running correctly with a defrost termination temperature of around 90 deg-f. The defrost cycle ran twice while running the 72 hour test. 11. Removed test instrumentation and Put the unit back into service, The thermistor was the culprit. I bought the right part on the first shot, nice.