MRT21NSHD3 Uni Refrigerator - Instructions

Unplug the refrigerator. Removed the right hand top shelf. Used a 1/4" nutdriver to remove rear center mounting screw for Control Housing. Used Phillips screwdriver to remove two mounting screws for timer. Unplug cable from timer and plug it into the new timer. Install the new timer and re-install the Control Housing. Plug in the refrigerator and adjust the timer to start the unit. This was a snap with the diagnostic provided by Part Select. At first I thought it was the fan rubbing but when I removed the cover (two screws) it was obvious that wasn't the problem. The diagnostic hinted that it was either the timer or the motor capacitor making the noise. Because the noise continued after turning OFF the control, I thought it was the timer...I was right.

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

1. Disconnected electrical. 2. Removed upper console in refrigerator by removing 2 nuts. 3. Disconnected wiring from console. 4. Removed 2 screws from defroster timer part and pulled off from connector. 5. Replaced with new defroster timer and put everything back together. Thank you Steve for the U-Tube step by step video.

Simply replaced the defrost timer located inside the frig just behind the temp dial. Very easy job. Removed the 3 screws holding the temp sw and light assembly. Removed the defrost timer w/ 2 screws and put i all back together. 15 mins at most. Suggest you watch the install video for pointers.

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.

I am a 65 year old woman with no mechanical aptitude: I just unplugged the frig. And used a screw driver to pry of the plastic socket from its outside edge. . Then you just unplug two tiny contact plugs that appear when you pull out the socket and replug in those two the same way on the new part. Pop the socket back into the hole . . . . And screw in the new bulb. I knew I needed the socket part cause when the bulb burned out , a new bulb still did not work. . . If I can do it, anyone can!

Removed bottom grill, removed two screws on left side and removed timer, unplugged it and plugged in new timer and reinstalled. Less than 10 mins. The Thermostat is in the freezer section behind the back panel. Removed all contents, removed shelving, removed 5 nut screws, and removed panel. Thermostat was clamped to top of coil assembly and was very easy to unplug and remove. New thermostat had a clamp built into it and was very easy to plug in and reinstall to the freezer coil. About 15 mins. This is an easy job for anyone who has any mechanical ability at all.

I remove the covering over the coil and defrost the solid frozen coil with luke warm water which took about 7 min. and replace the thermostat which I knew was bad.Wasn't sure about the timer,so I replace it too @ that price which took about 3 min.Put back and replace everything with clean-up,about another 10 min.

followed the video very esay

pulled out freezer, went to floor,reached in next to compressor pulled off clip just like on the video.Pulled off old capacitator took off wire leads.Installed new one. Freezer runs great.Loaded it up with beef pork and venison. No problems.

just like the video show sa 1,2,3 yeaaa thanks

I ordered a new thermostat and installed it in less than 15 minutes. Looks like the problem is fixed. Now ,the freezer cycles on and off correctly. The part was ordered on a Monday and I got it the next day. I am very satisfied.

Took out three shelves. Removed 9 screws with a battery powered drill with a phillip screwdriver bit. Popped off the thermostat like I had seen on the video. Put the new thermostat on. Replaced the two wires one at a time. Reassembled the unit. This was so quick that my wife told me to let her know when I wanted to fix the freezer. She was shocked that I had completed the job. I'd been in the garage less than 10 minutes. It has been six weeks. and the freezer is working perfectly.

inspected visible refrigeration lines for evidence of leaking, found nothing substantial that would cause concern, ordered capacitor and defrost thermostat simply because both are inexpensive parts and theoretically either could be causing the problem. Both parts were very simple to install especially since I am a semi-retired refrigeration man.