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URFS518S (AST7AMA) LG Range - Overview

Diagrams for URFS518S

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Parts for the URFS518S

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Enter a part description. DIY Heroes keep it simple, eg. "belt" or "pump".

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Microwave Screwtapping – Part Number: 1TTL0402818
$13.92
Special Order
Thermostat – Part Number: 6930W1A003J
$21.45
In Stock
Thermostat
Part #6930W1A003J
This is a high-limit thermostat for various models of LG microwave ovens. This thermostat acts as a preventative safety device and is designed to cut off continuity for the microwave oven if/when its temperature exceeds a certain threshold. If you are noticing dangerously high temperatures coming from your microwave oven, make sure to turn it off and test this thermostat with a multimeter for continuity, to ensure it is still working properly. If not, it needs to be replaced immediately. This thermostat is sold individually and does not come with any other parts or securing screws.
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Screw,Tapping – Part Number: 1TTL0402422
$13.92
Special Order
Screw,Tapping
Part #1TTL0402422
Screw,Taptite – Part Number: 1SBF0402418
$13.92
Special Order
Screw,Taptite
Part #1SBF0402418
Cable,Assembly – Part Number: 6021W3B001U
No Longer Available
Cable,Assembly
Part #6021W3B001U
Screw,Tapping – Part Number: 1TTL0402418
$11.77
In Stock
Screw,Tapping
Part #1TTL0402418
Wire Holder – Part Number: 4B72944B
$13.92
Special Order
Wire Holder
Part #4B72944B
Screw,Tapping – Part Number: 1TPL0402418
$29.47
Special Order
Screw,Tapping
Part #1TPL0402418
Screw,Customized – Part Number: 4B70188C
$13.92
Special Order
Screw,Customized
Part #4B70188C
Cable,Assembly – Part Number: 6021W3B001A
$36.85
Special Order
Cable,Assembly
Part #6021W3B001A
Screw,Tapping – Part Number: 1TPL0302418
$13.92
Special Order
Screw,Tapping
Part #1TPL0302418
Magnetron – Part Number: 6324W1A001M
No Longer Available
Magnetron
Part #6324W1A001M
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Common Symptoms of the URFS518S

How this model fails, and the parts that fix it.

Won’t turn on
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See how others fixed this model. Time, tools, difficulty, and steps that lead to victory! View More

Search repair tips from other customers using simple keywords like "replace", "fit", "remove", "inspect". DIY doesn't mean you have to do it alone!

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The Microwave was completely dead and wouldn't run, light up or anything.
3 of 6 people found this instruction helpful.
  • Christopher from SHERWOOD, OR
  • Easy
  • 1- 2 hours
  • Pliers, Screw drivers
I followed an old appliance repair forums post from 2008 that discussed this exact common issue with this LG model. It took me quite a while to find the info. Then I used the schematic diagrams on your website to find where the part was located inside the microwave. I removed the outer cover. I tested all components including the thermost at for continuity with a multimeter. I discovered there wasn't any continuity in the thermostat so ordered the part and replaced it. Everything works like a charm! Thanks for the great, fast service.
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