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78503 (AST2SER) LG Refrigerator - Overview
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$24.67
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Refrigerator Door Switch
Part #6600JB1010A
The interior light in your refrigerator is controlled by a switch that is activated when the door is opened and closed. If your refrigerator light will not turn on, or stays on when the door is closed, you could have a faulty switch. The switch is spring-loaded and is a generally closed type of switch meaning there should be no continuity...Read more when the button is pushed, and continuity through the switch when it is no longer engaged. This plastic, white, OEM switch is sourced directly from the manufacturer, is sold individually and is easy to replace. The repair usually takes less than 15 minutes and requires a flat-blade screwdriver and needle-nose pliers.
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$18.22
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Plastic Tube - 5/16 Inch
Part #MJU62070602
This water tube, or plastic tube, is used in refrigerators and freezers. The tube ensures water is directed to parts of the refrigerator that need it, such as the water dispenser and ice maker. If you find that your current one is leaking or broken in any way, replacing the tube can fix this problem. Make sure to unplug the appliance from...Read more the power source before you start this installation project. Refer to the diagram provided by the manufacturer for further instruction and accurate guidance.
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$68.18
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Refrigerator Water Filter LT600P
Part #5231JA2006F
This refrigerator water filter is designed to improve the taste and odor of both water and ice by reducing a wide range of contaminants. Utilizing an activated carbon block filtration method, it effectively captures impurities such as lead, chlorine, mercury, cysts, asbestos, and particulates, while allowing fluoride to pass through. The ...Read morefilter is certified to meet NSF/ANSI Standards 42 and 53 for water purification, ensuring reliable performance and safety. With a lifespan of approximately six months or 300 gallons—depending on water quality and usage—it provides consistent filtration and supports the overall efficiency of your refrigerator’s water system.
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$31.58
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$15.00
In Stock
Door Stopper
Part #4620JJ2009A
The door stop, or door stopper, is used in refrigerators. This door stop helps keep the door in position and in balance. This part is attached to the bottom of the door and it keeps it from opening and hitting the side of the refrigerator cabinet. If you find your door hits and scratches your lower cabinet when you open your fridge door, ...Read moreinstalling this part can be a solution to this problem. Make sure to unplug your appliance from the power source before installing this part and safely store food to prevent it from deteriorating. Refer to the diagram provided by the manufacturer for further instruction.
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$122.57
In Stock
Water Inlet Valve Assembly
Part #AJU72992601
This includes the primary and secondary valves along with the wire harness.
$44.23
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No Longer Available
$15.00
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$23.60
In Stock
$63.64
In Stock
No Longer Available
Lamp Cover
Part #3550JJ1070B
This lamp cover is also commonly referred to as a light lens. This is a genuine replacement part. It is used in a refrigerator to cover the light bulb. It is made of clear plastic. It measures 14 inches by 5 1/2 inches. This does not include the white plastic housing that the light is in, this is just the cover. To install your replacement part you simply snap it into place, no tools are required.
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$15.61
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Common Symptoms of the 78503
How this model fails, and the parts that fix it.
Leaking
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Light not working
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Door won’t open or close
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Not dispensing water
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Ice maker not making ice
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Ice maker won’t dispense ice
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Fridge too warm
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Noisy
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Will Not Start
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Frost buildup
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Clicking sound
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Ice maker dispenses too much ice
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Fridge and Freezer are too warm
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