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Model numbers can be made up of numbers (1005400, for example) or a combination of letters and numbers (LAT1000AAE). The model number will most likely appear on either a paper sticker or a metal plate. Your appliance's model number tag may look similar to the sample model number tags shown here (model number highlighted in yellow):
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The drain pump and motor assembly may also be known as the washer drain pump and is a part for your washer. The drain pump helps expel water from the washing machine. The drain pump is activated after...
The hot water inlet valve on your washing machine controls the water flow into the washer. This inlet valve has a standard hose fitting inlet and one water outlet. The water inlet valve opens to allow...
The cold water inlet valve on your washing machine dispenses the cold water and bleach into the washer in the prewash cycle. This inlet valve has a standard hose fitting inlet and 2 water outlets faci...
The door lock assembly is a part for your washing machine and tells the washer that the door is closed and locked into place. If the switch has shorted out and not locking, it is no longer delivering ...
This is a replacement detergent dispenser for your washer. It stores the detergent, and then dispenses it into the washer at the appropriate point in the wash cycle. If the detergent dispenser is brok...
This replacement water inlet valve is designed for use in washing machines to manage water flow during the cold water fill, bleach dispensing, and prewash cycles. It features a standard hose fitting i...
This washer hose with bellows, also known as a dispenser hose, is a genuine OEM replacement part for your washer. Replacing this part can be helpful if your washer is leaking. The dispenser hose conne...
This replacement pump filter, also known as a filter assembly, is a genuine OEM part for your washer or washer/dryer combo. Before beginning this repair, turn off the power and water supply to your wa...
The drain hose assembly is a genuine OEM assembly supplied directly by LG for use in washing machines. The assembly includes the hose, connector, elbow fitting, and metal clamp. It is responsible for ...
This is a locking pin, and it works in conjunction with your washer. The part measures to be roughly 3 inches long, and less than an inch wide. The pin is cylindrical, off-white in color, and made ent...
This genuine OEM drum seal gasket prevents water from leaking between the outer tub and spin basket of your washer. It is made of black rubber and measures 2.5 inches in diameter. If your washer is le...
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Tracy
November 7, 2025
It won't wash just hums
For model number 79640021900
Hello Tracy, thank you for contacting us. According to our research, a faulty door lock switch, part number PS3533609, is causing the issue and needs to be replaced. A faulty switch can cause the washer to hum but not operate because it interrupts the safety circuit. The machine attempts to start the motor, creating a hum, but the broken switch prevents the main wash from engaging. We hope this helps.
Removed the top of the washer by removing the 4 back screws and 2 small brackets. Then I removed the front panel, this was actually the hardest part, 2 screws and 8 tabs that you pop out carefully from the top of the panel. I only disconnected the power button and was able to rest the panel on top of the washer. The rest of the washer cam
... Read moree apart quickly just moving down the front of the washer and removing the door, latch, tub gasket, drain cover. Removing the pump was just a mater of disconnecting the drain hoses, and one clip under the drain assembly. 3 screws attach the drain to assembly to the pump and only 2 wires that are clearly marked. Reassembly is just going back through in reverse order of disassenbly. The best thing about this is that it all comes apart with a standard phillips screwdriver.
Thank you for the very helpful YouTube video. After watching the video, I was able to diagnose the problem, buy the part from your website, and complete the repair. This is my personal machine - I am not a professional repairman.
