MRTC18V3MW2 Uni Refrigerator - Instructions

My unit was not defrosting. Defrost heater was not functioning. Defrost heater tested good with a meter. Thermostat (cold) tested bad with a meter. Defrost timer was working properly. I replaced the thermostat but I had to buy red crimp connectors because the blue ones that came with the thermostat are designed for wire bigger than 18 AWG wire. The thermostat leads as well as the wire in my unit were 18 AWG. The crimp was not tight enough for my liking with the blue butt connectors. I also purchased smaller heat shrink tubing. After replacement, the defrost heater started working. I could see it glowing. Unfortunately immediately after getting the heater working the contacts in the defrost timer arced and stuck together thus preventing the timer from exiting defrost mode. The heater went off at this point indicating that the thermostat was now working. I then purchased and replaced the defrost timer and now the fridge is functioning properly. I noticed both replacement parts, even though I looked up my fridge model, were different part numbers than the originals. I'm guessing the new parts are improved? I also noticed the timer was an 8/30 rather than a 10/30 like the original. The fridge is working better than when it was new so evidently defrosting every 8 as opposed to every 10 hours is better for my unit.

Long story short:

Buy the correct crimp/butt connectors before beginning replacement of the thermostat and proactively replace the defrost timer since it is rather inexpensive.

The freezer was still making ice, but the fridge portion was barely cooler than room temp. I came to the website and saw that the defrost thermostat cured this problem over half the time. I was quite dubious because I don't see how that would affect the non-freezer part of the compartment, but since it was a cheap and easy-looking repair, I figured what the heck, lets see if that's it. Sure enough, it's like new again. I still don't understand it, but I'll take it. The repair itself is simple, just cutting out the old switch and splicing in the new. Two wires, and clip it to the copper tubing where the old one was. The switch is accessed easily after taking out four screws in the back of the freezer compartment. The only hard part was removing the ice-maker, and that's just because the two screws that hold it in are a little hard to get a good grip on. Alas, you have to get the ice-maker out to pull out the back panel, so there's nothing for it but to wheedle those screws out.

Snapped new door rack into place.

This repair on this model is super easy because the shroud for the fan is not really attached except for the bottom so I was able to gently bend it to give em enough space to pull the broken fan off and put the new one on.

I took the cracked pan out, waited for the new pan to arrive (2 days) and slid the new pan right in. It was so easy.

No tools were required to install

took the old one out, put the new one in. Will be an ongoing problem due to the flimsy nature of the rack. Refrigerator is in a rental unit. Great to know parts a just a phone call away, and arrive super fast.

snapped the wires from frig onto the proper prong and viola,it works. The proper prong is identified by the size because there are two prongs with the wires and two connecting prongs in the socket. I talked to a very helpful representative and she gave me the number for Frigidaire, when I was confused by the placement of the wire. Wish I had remembered her name to share with you. As it turned out I didn't need to call Frigidaire.

removed the old rusted shelf and replace with new one. Very simple.

I hesitate to say anything since I did exactly what their video told me to do, and it fixed the problem. Couldn't be happier. Was positive I was looking at 1000$ for a new fridge. Love being able to fix it by installing 15$ part myself. Thanks guys.

The new part fit perfectly! I just snapped it on! Thanks so much Partselect! You processed my order quickly, and I had it in my hands in a few days. What a relief to have this fixed! Thanks again.