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LG is one of the “relatively reliable” manufacturers of large and small kitchen appliances.
They make a number of best dishwasher models on the market today.
If you happen to own one and experience a problem one day with it not powering on when you go to push the power button.
One of the common issues, when LG dishwasher has no power and not responding on any buttons on the user interface board, is when NOISE FILTER is MALFUNCTIONED
In this article, we have included a step by step instruction guide to help DIYer’s to be able to replace the noise filter in an LG dishwasher.
Replacing the noise filter in an LG Dishwasher
Following this procedure, it should be fairly easy for anyone who can use a screwdriver and nut driver.
After you have received the new noise filter that you ordered from here… you are ready to go.
The first thing you should do is check the breaker in your home’s main power panel.
If the breaker marked dishwasher is on and not in the tripped position (breaker handle in the center position) then you will likely need to replace the noise filter or line filter, which protects the dishwasher’s internal circuitry from a power spike or surge.
You can contact LG ( if dishwasher still on warranty) or order the part online here.
The first thing you should do is to check and see that there is power getting to the dishwasher.
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Since you already checked the breaker and it was on.
To check that the power is actually getting to the dishwasher you will need a screwdriver and multimeter.
Step By Step Procedure how to fix noise filter when LG dishwasher has no power
With the breaker still on
#1 Using a screwdriver remove the two screws holding the bottom cover on.
#2 Remove the screw holding cover on the power box (right-hand side of dishwasher)
#3 Using a multimeter check to see if there is a voltage between white and black wires
#4 If there is a voltage you can turn the breaker off and continue on to the next step
#5 Turn the breaker back OFF
Test the fuse on the main control board (before replacing the noise filter)
#6 With the breaker off open the dishwasher to access the inside front panel
#7 Remove all of the screws that are holding the cover in place
#8 Pull the cover away from the door enough to access the control panel from under the top of the cover
#9 Using your multimeter check the fuse for continuity (multimeter should show zero)
#10 If the fuse is bad you will need to replace the control board as well
Accessing the Noise Filter
To access the noise filter you will need to pull the dishwasher out from under the counter in order to get at it.
The water line and drain lines should be connected under the sink area if it is necessary.
You may need to disconnect the water line and drain lines if there is not enough excess hose length.
#11 Remove the top two screws that are holding the dishwasher in and loosen the leveling feet at the bottom and carefully pull the dishwasher out.
#12 If you feel any resistance to you pulling it all the way out you will need to disconnect the water line and drain lines first.
#13 If not, continue pulling the unit out so that you can get at the right side of the machine
#14 Once you locate the noise filter assembly you need to disconnect the wires
#15 After removing the wires you will need to remove the one screw that holds it in place
Note: the screw is a little difficult to get out and you will need to use a short stubby screwdriver
#16 After the screw is removed shift the noise filter to the right to dislodge it and pull it out.
Installing the new Noise Filter
#17 Take new one out of the package and put it in the place that you removed the old one
#18 Place the screw in and tighten it
#19 connect all of the wire connectors in place
#20 Slide the unit back in place and reconnect the water and drain lines if you had to disconnect them
#21 Put the two screws back in at the top that you had to remove and tighten them
#22 Put the leveling feet back in place and snug them back against the floor
#23 Be sure that you reconnect the power wire that you checked for power earlier and place the covers back on ensuring you tighten the screws
#24 Put all of the screws back in that you removed from the inside cover and tighten them
#25 be sure that you turned the water supply back on and that the drain in is tight
#26 turn the breaker back on and check it for power and it should be powered and ready to go
We bought an LG LDP6797BD dishwasher in 2018, with the intentions of putting it in our house being remodeled. We used it in our rental home for about 8-10 months before removing it from service and putting it in storage. It never got installed in the house, so after sitting for 2 years, we pulled it out of storage and put it in another rental property where it has worked flawlessly for 5 months.
Now after a total service life of 13-15 months, we walk in the kitchen one day to find it dead. Won’t power up, won’t light up, won’t reset. Looking at a few videos, I picked up a line filter. Not the problem. In fact, once I had it apart to change the line filter, I could see the red LED lighting on the board. So clearly it has power.
Then after some more research, I find the web full of similar complaints. The number of purchasers with failures occurring, conveniently almost immediately after the end of their one-year warranty, is simply staggering. The Amazon listing for this dishwasher has 100% 1-Star ratings. Let that sink in. 100% 1-star ratings, I have never seen that on ANYTHING in my life. And especially not on an item that costs $1000.
This design clearly has a significant design flaw somewhere. The number of instances of identical failure occurring within a span of 12-16 months of service life is not a coincidence, and this statement is coming from a highly-experienced engineer with 3 decades of experience in design and manufacture of electro-mechanical systems. I know better than to believe that any manufacturer can take products to market and NEVER make a mistake in the design cycle. But what that manufacturer chooses to do about it when mistakes happen is what defines a company. This machine has a major design flaw, LG knows it, and apparently has chosen to do nothing about it.
And I guess they have a right to not do anything about it. Well, I have a right to do something about it as well. If LG continues to leave customers like myself that spent quite a bit of money on a clearly defective product, then it will be the last of my money LG will ever see. And I will go out of my way, every chance I get, to encourage as many people as possible to also not ever spend THEIR money on an LG product. This is site number 4 for the day, I wonder how many more times I can tell this story before the weekend is over?
If LG believes that not addressing this issue will save them money, I can assure you it will not. They will lose far more money from me alone than what it would cost them to make this right with me. Add to that lost revenue the amount of money they will lose with all the people I convince to not ever buy LG as well, and this will quickly become an expensive mistake many, many times over what it would take to fix it. If everyone else being screwed does the same, we can make a statement that LG simply will not be able to ignore.
LG, the ball is in your court.
That’s unfortunate
Same issue here with the same product. I bought mine at Costco and will lobby to get them to quit selling LG products due to their lack of customer service on standing behind their products when they fail after a few years of service
I have an LG LDF7932ST.
For many months the power button was intermittent. Sometimes it came right on, sometimes after many or many many pushes. It seems to be completely out now as I cannot turn it on.
Any suggestions?
Sounds like control panel assembly failure or just a button
Power to dishwasher giod.Fuse on main board good. Replaced noise filter, still wont power on. What else?
Did you check, that there is power coming from the filter to the control board? If power coming but board does not wake up, then the problem can be with the control board. This type of problem requires proper troubleshooting using a multimeter