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It is difficult to determine which way to go. Some people believe you cant have too much detergent while others say too much will cause buildup. Some say hard water is the problem others say no way. I guess the only way to know is trial and error. Ive used Persil at 50 bucks a box blended with...

I wonder if you could just tip the machine and work through the large opening at the bottom of the machine. Would seem possibly easier.

That could be worth a try suburbanmd!

Great points Jetcone! If you think of that other cleaner LMK please. LOL Malcolm, you know we Americans couldnt take 2 hour wash times! Matt, you've got that right! No mold or detergent buildup is great after 5+ years in that machine!

I dont know your model but I looked at 3 LG service manuals and not one of them showed how to remove the knob, just the whole control panel. I work on Korean autos as we also have a Hyundai dealership and I can tell you their parts fit so tight that often we break something to get parts removed.

Great! Thanks for the tip and the link Dan!

I think it is a lot more than just the phosphates. Lots of changes in environmental standards, the type machines we used when phosphates were legal, the difference in heater temperatures onboard from europe and their smaller high speed machines and water conditions,treatments etc. Jetcone I am...

Thanks Jetcone! Ill work on getting those things corrected. LMK how the "Splash" works out! Thanks for reminding me about CLR, Ill see if I can find some.

So in wrapping up this task I cleaned off all the crust that I was able to scrape from the plastic outer tub, the front tub cover, sump area, removed all debris and lint and cleaned the bristle seal. I could not adequately remove the sediment from the heater so I replaced the heater and its...

Here we see the outside of the stainless spinner basket. This crust is tough as nails! You could grind it off but I dont think it is necessary, as it is thin and doesnt add any significant weight to the basket.

And now the stainless spinner basket removed. Note the very dry area above the water line and normal splash areas as opposed to the dark not quite dry areas below. This crust is thin but very hard. I was able to scrape most of it out of the plastic outer tub but it was stuck tough to the spider.

And here you see the sump area

Here is where the issue begins to be revealed. After removing the latch, tub cover clips and wiring and pulling the tub cover here we see a crust that has formed in the areas where the water line is. The water heater is coated with this completely and the crust is rock hard on the metal...

This is front panel removed, dispenser door removed, top raised out of the way and supported. You can see the latch assembly which will be removed next with two screws and the wiring to the heater assembly. You can also see the drain tube assembly for the boot.

This view shows the door removed, and placed where you can see the vented opening at the bottom that is ducted to the air vents at both sides of the top of the door.

NOW the 7500 Inspection after 5+ years So last night curiosity got the best of me and I had to tear down the 7500 model that replaced the washer in this original topic a little over 5 years ago. I primarily wanted to see what the effects over time have been with using powedered detergent...

Ack! That reminds me of Permatex Aviation gasget sealant.. sticky and gooey to put on with a brush but makes a great seal.

I think a lot of the low pricing was the government incentives paid to the manufacturers this year for energystar ratings. If they dont get those next year you may never see prices like that again. It sure ticks you off though when you get a huge energy star discount in the summer and other...

Maybe one had a seal leaking for years?

Ive read many posts from you Sudsmaster over at the Garden Web about your 7500s and I know you have the most experience with them. I was thinking my old 4000 model did the rapid tumble with the later generation controller but maybe the 7500 was the first after all. Been too long to remember now...