MRT21NRED2 Frigidaire Refrigerator - Instructions

I went on partselect put in make and model number, a list showed the probable cause. I watched the how to video. When I received the part in short order I loosened 2 screws disconnected the wiring plug (sprayed it with contact cleaner) pluged it in, removed screws from old part put them in new one. Put timer back in its location and tightened the screws. Very eazy, works fine.

I pick up very fast at these kind of small jobs but because of my very busy schedule I decided to call (2 times) technicians about my problem but none of them had any idea. About my repair, I removed the grill at the bottom of the refrigerator, unscrew a small plate (located on the bottom left side) that's holding the defrost timer. I plug on the new part, screw back the plate with the defrost timer and that was it. Don't forget to turn clockwise with your finger the timer until you hear a "click" and then turn it slightly more to the right. There is also a video on U-tube.

open freezer door two screws just below unscrew slide piece to side unplug reinstall very simple.

Based on the diagnosis on this site I thought the 66% odds of the problem being the Defrost Timer looked pretty good, $30 including shipping versus a Sears tech phone estimate of $250-300. BINGO! Just follow the online installation instructions and don't forget to use the reset switch as described. Works like new! THANK YOU

pulled down the thermostat cover and unpluged the timer control and replaced it with the new part. total time to repair was about 15 min. there was a vidio on how to replace the new part that just informed me that I did it right!!!!very easy site to find what you are looking for!!!!

replaced the defrosting timer and saved a lot of $ by doing it my self.

Just followed the online instruction video .It was very easy.

You guys at Partselect are the best!!! Went to your site, typed in my appliance symptoms, and received possible fixes. Ordered the suggested parts (under $50) on a Sunday night and got em Tuesday am. Installed the easiest one first and Voila!!!! Frig is working great. Thanks Bob S

Remove 4 screws that hold up overhead controls, this is also the part that holds the light. Unplug the timer and replace. Super simple and runs great now. After you plug it in it may take a few minutes to kick on the compressor but it will. Also I was pleased it was a factory Frigidare part. Price was right.

Unplugged the frig. Removed temp control module from frig, 1 screw with nut driver. Activated defrost timer by rotating adjustment until 2 clicks are heard. Removed two timer mounting screws, unpluged timer, plugged in the new timer, mounted it to the control module with 2 mounting screws. Replaced control module with the 1 mounting screw. Closed door and plugged it up.

I followed the procedure online and found the thermostat was ok, it had continuity when cold, and the heater coil was also ok, it too had continuity, therefore the problem was a bad defrost timer. the refrigerator works great, thanks parts select!

bottom left cornerof fridge defrost timer replaced two bolts and a wire

The repair was straightfoward. The evaporator motor I received from partselect was a different model with different wiring configurations. I cut the wires from the new motor per the instructions I received with the new motor and I did the same with the wires that connect to the fridge. Once I matched the wires and secured them with electrical caps I began to put the evaporator motor to the base and started screwing the screws the way I took them off. Once I connected the wire harness to the back of the freezer and turned it on I noticed a big difference in air flow. I was surprised at how easy it was to fix my refrigirator problem. It's been a few weeks now and the fridge is cold and working like it should. Don't be afraid of this task. it's very easy and will save you a ton of money. Thanks partselect.

per the video..easy installation....unfortunately the temperature did not improve. We still have a refrigerator temp in the upper freezer.....and a "cooler" in the refrigerator section

After some troubleshooting to ensure the thermostat and heating element were working, determined that the defrost timer was the problem. With the defective part, I was able to manually advance the timer to activate the defrost cycle, but it wouldn't do so on its own. Unplugged the refrigerator from the wall. Timer is located in the refrigerator compartment at the very top. The compartment houses the cooling thermostat, the light bulb and the defrost timer. Using 1/4" nut driver, remove 4 screws holding compartment cover to top of fridge. Lower a bit to access electrical wiring. Wiring harness can be unplugged to work on the timer away from the fridge which makes it a bit easier. Timer is mounted with 2 phillips head screws. Remove screws and unplug timer from wiring. Install new timer, plug in wiring, secure with the phillips head screws and remount entire compartment.