Models > MRT18FNBW1

MRT18FNBW1 Uni Refrigerator

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Diagrams for MRT18FNBW1

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If your freezer will not defrost, or your fridge and freezer are too warm, there may be an issue with the defrost timer. This device helps to melt ice that builds up on the evaporator coils. It does t...
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This is a genuine OEM ice maker assembly for your refrigerator. The ice maker makes eight cubes at a time, by filling the mold with water from the inlet valve, freezing the water until the cubes are f...
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$19.71
Clear, 120 Volt, 40 Watt.
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This is a white cut-to-fit door shelf retainer bar.
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This is the door shelf end cap for your refrigerator. It connects to the refrigerator door and keeps the door bar in place. Your refrigerator will have two shelf end caps, one for the right side and o...
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This white end cap is a little over two inches long. It is used for the right side of either the refrigerator of the freezer door shelf.
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This part is the replacement heat-release ice maker unit only. This kit comes with four round female connectors at the end of the wire harness. It also comes with the adaptor that converts the harnes...
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This part is attached to the compressor. It helps the compressor kick on and off while maintaining a constant temperature to keep things frozen in your freezer.
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This limiter thermostat cuts out when the temperature inside your refrigerator reaches 55 degrees Fahrenheit and kicks back in when the internal temperature drops to 20 degrees Fahrenheit.
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This motor runs the evaporator fan in your refrigerator. It is mounted on the center hub and has three lead wires terminals. This motor rotates in a clockwise fashion. Its shaft has a diameter of 1/8" and is 1-1/4" long.
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This is the door shelf end cap for your refrigerator. It connects to the refrigerator door and keeps the door bar in place. Your refrigerator will have two shelf end caps, one for the right side and o...
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This is the door shelf end cap for your refrigerator. It connects to the refrigerator door and keeps the door bar in place. Your refrigerator will have two shelf end caps, one for the right side and o...
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Common Problems and Symptoms for MRT18FNBW1

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Fridge too warm
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Ice maker not making ice
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Freezer section too warm
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Freezer not defrosting
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Noisy
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Will Not Start
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Light not working
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Fridge and Freezer are too warm
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Leaking
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Too warm
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Ice maker won’t dispense ice
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Fridge runs too long
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Won’t start
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Fridge too cold
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Freezer too cold
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Frost buildup
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Clicking sound
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Doesn’t stop running
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
Customer:
Stephen from Warrington, PA
Parts Used:
5303917954, 215846602
Difficulty Level:
Easy
Total Repair Time:
30 - 60 mins
Tools:
Nutdriver, Pliers, Screw drivers
Fridge got warm and freezer coils were frosted
Fridge is a side by side. The freezer is pretty narrow for a guy with wide shoulders.

Pulled plug.

Had to remove bottom drawers then used nut driver to remove screws closest to back wall in drawer runners. Once the back screws were removed the runners could be swung up or down out of way so back cover could be re moved.

Once back cover was removed thermostat was located attached to top pipe going into coil using a spring clamp.

Cut the wires just outside the crimp connectors going into thermostat. Released the spring clamp buy squeezing botton together.

Removed old badly corroded thermostat.

I wish I had attached the crimp connectors to the new thermostat wires before mounting it. Reaching way in the back, while turning shoulders verticly and trying to get the wire connectors set from both sides was awkward and uncomfortable...The biggest PIA of the whole task.

Once connected I let the fridge (thermostat) cool for 10 min. Turned the dial defrost timer to get it into defrost mode. Stupidly touched the heating element to see if it was getting warm...it was very hot.

Coils steamed...every looked like it was working. Unplugged, put back cover back on and retattached drawer mounts.

Plugged back in and everying is working great!
338 of 402 people found this instruction helpful.
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Customer:
Juan from Miami, FL
Parts Used:
241798231
Difficulty Level:
Really Easy
Total Repair Time:
15 - 30 mins
Tools:
Socket set
Broken ice maker
Unplugged faulty ice maker, removed two screws holding it to the refrigerator and took it out. Reversed the operation with the new ice maker and after a few minutes presto, we have ice.
252 of 340 people found this instruction helpful.
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Customer:
JACK from MESA, AZ
Parts Used:
5303918277
Difficulty Level:
A Bit Difficult
Total Repair Time:
1- 2 hours
Tools:
Screw drivers
Ice Maker Stopped Working
It was pretty straight forward. Remove the two screws that hold the unit to the wall of the freezer. In my case, I had to use a different ice maker than what came with the frig. In order to install the replacement unit they sent a wire adaptor so it would attach to the existing wiring. That too was all fine and dandy. The only p roblem was that the end of the wire adaptor did not fit through the existing hole in the rear of the frig. I used a utility knife to cut through the thin metal lining. That worked just fine. However, I could not cut through the insulation because I could not reach it through the small hole. The excess wire was supposed to be pulled through the hole and out through the back of the unit. So now the excess is between the wall of the freezer and the insulation. The unit is working wonderfully. In fact, it is making more ice than I can use. I am very pleased with the replacement unit. This is the 3rd ice maker that has been in this frig. All the others had a design flaw that had a leak in the rear of the unit. This caused all the ice to form into a big block. The replacement unit has not had this problem so far. Thank you for allowing me to explain my situation so that maybe others may benifit from my experience. Thank you. Jack
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