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Dishwasher question

Old 12-28-2014, 09:39 AM
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Default Dishwasher question

I've got a 4 year old LG dishwasher, the thing works great and always cleans the dishes quite well.

All of a sudden the past 3 washes the dishes, glasses have been coming out with residue on them. Same detergent, same setting as always.

I don't see anything sitting in the bottom of the washer that might be causing this.

Is there a filter that I might be missing, or am I supposed to be using a rinse on the washer itself every so often?

I've never had it serviced and love the machine overall.,
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Old 12-28-2014, 09:46 AM
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Two problems I've had:
1. Clogged filter in bottom of dishwasher, causing poor water circulation in washer.
2. Failing water inlet valve leading to insufficient rinsing.

In both cases, it was not a deposit. The glasses were permanently etched by the detergent.

Start by checking the filter. Mine was clogged with old jar labels and pieces of plastic film. Wife and I agreed to keep such stuff out of the DW. Be careful checking- if you've ever had broken glass in the DW, some of it will be laying on the filter.
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Old 12-28-2014, 10:02 AM
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http://www.lg.com/us/support/answers...ms-and-filters

https://www.youtube.com/watch?v=EXt3R4_ZfLY

A rinse aid should also help.

Does your dishwasher have a built in disposal? Some models that have the built in disposal do not have a filter.
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Old 12-28-2014, 10:58 AM
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Originally Posted by YFMF View Post
I've got a 4 year old LG dishwasher, the thing works great and always cleans the dishes quite well. All of a sudden the past 3 washes the dishes, glasses have been coming out with residue on them. Same detergent, same setting as always. I don't see anything sitting in the bottom of the washer that might be causing this. Is there a filter that I might be missing, or am I supposed to be using a rinse on the washer itself every so often? I've never had it serviced and love the machine overall.,
Mod #? I can check with lg tech support tomorrow
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Old 12-28-2014, 11:18 AM
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Have you tried a dishwasher cleaner? They are about 10 ounces or so, with a wax top. Put them in the silverware holder, top down, and wash on the hottest water setting. We have a well, and doing this every couple of months cleans the dish drawers.
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Old 12-28-2014, 11:51 AM
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Originally Posted by weatherman View Post
Have you tried a dishwasher cleaner? They are about 10 ounces or so, with a wax top. Put them in the silverware holder, top down, and wash on the hottest water setting. We have a well, and doing this every couple of months cleans the dish drawers.
Tang orang powder mix through a cycle also works well. Wipes out the rust stains and deposits
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Old 12-28-2014, 12:39 PM
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Originally Posted by BACKTOTHESEA View Post
Tang orang powder mix through a cycle also works well. Wipes out the rust stains and deposits
You mean the drink of astronauts? I didn't even realize they still sold it!
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Old 12-28-2014, 01:54 PM
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Originally Posted by UT_VOLS13 View Post
http://www.lg.com/us/support/answers...ms-and-filters

https://www.youtube.com/watch?v=EXt3R4_ZfLY

A rinse aid should also help.

Does your dishwasher have a built in disposal? Some models that have the built in disposal do not have a filter.
Great, thanks, couldn't be easier IMO, will get to it tonight.
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Old 12-30-2014, 07:28 AM
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Originally Posted by MikMal View Post
You mean the drink of astronauts? I didn't even realize they still sold it!
They still do and it works very well.
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Old 12-30-2014, 11:21 AM
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What that happens to me I remember that I forgot to add salt to the softener. Water was hard....
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Old 12-30-2014, 03:39 PM
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Dishwasher cleaner. Wife does our's once a month.
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Old 12-30-2014, 03:51 PM
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Iron Out
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Old 12-31-2014, 02:11 AM
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Water not hot enough maybe? I'm assuming a 4 yo LG pre-heats the water so could the heater be on the fritz?
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Old 12-31-2014, 06:05 AM
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A second on checking the water softener. When we were in Florida ours suddenly quit doing a good job washing. Turned out to be the water softener!
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Old 12-31-2014, 06:19 AM
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If it's not your water softener, check the label/date of your detergent. The EPA nazis outlawed the use of trisodium phosphate a few years ago. This is the best cleaner you can get, and its removal has driven all the marketing BS of the recent "new and improved" crap.

Just go to Home Depot or other box store and buy a box of TSP; add half a teaspoon to your detergent, and you're back in business.
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Old 01-01-2015, 08:45 AM
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OK, so I pulled both the spinning water jet heads from the upper and lower racks in the dishwasher, The upper head was clogged with a bit of gunk so I cleaned it out and placed it back.

Filled the dishwasher, hit the start and pots/pans button and bingo, the dishes came out nice and clean, however I noticed all the water didn't leave the system, there was and is till water siting in the bottom of the unit.

I checked the breakers and they are all fine, I checked the 2 parts I removed and they are in correctly, but I can't get the unit to turn on now. I hit the power button and nothing, short of me pulling the unit out from under the counter do any of you have any ideas on why I'm not getting any power to the dishwasher?

I don't play with electricity so me screwing with the wires is out of the question unless I see 1 wire that is simply disconnected I'm lost with wiring.
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Old 01-01-2015, 08:49 AM
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Well it sounds as if it has something to do with the switch when you close the door. Find the switch and see if you didn't knock a wire off.
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Old 01-01-2015, 08:52 AM
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Originally Posted by YFMF View Post
OK, so I pulled both the spinning water jet heads from the upper and lower racks in the dishwasher, The upper head was clogged with a bit of gunk so I cleaned it out and placed it back.

Filled the dishwasher, hit the start and pots/pans button and bingo, the dishes came out nice and clean, however I noticed all the water didn't leave the system, there was and is till water siting in the bottom of the unit.

I checked the breakers and they are all fine, I checked the 2 parts I removed and they are in correctly, but I can't get the unit to turn on now. I hit the power button and nothing, short of me pulling the unit out from under the counter do any of you have any ideas on why I'm not getting any power to the dishwasher?

I don't play with electricity so me screwing with the wires is out of the question unless I see 1 wire that is simply disconnected I'm lost with wiring.
Sometimes dishwashers need a "Reset". I copied this from:
http://www.fixya.com/support/t109180...t_power_button
Modern LG appliances retain settings even after you disconnect the power cord. The machine is reset opening the door and then pressing and holding the Normal and Delicate buttons at the same time for 3 seconds.

You can also try running the test mode shown at page 12 of the service manual.

If the machine is non responding and there is no code on display, then the problem is likely control module or control pad. Since the control pad looks defective, that is probably the part to replace.
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Old 01-01-2015, 09:31 AM
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Originally Posted by yarcraft91 View Post
Sometimes dishwashers need a "Reset". I copied this from:
http://www.fixya.com/support/t109180...t_power_button
Modern LG appliances retain settings even after you disconnect the power cord. The machine is reset opening the door and then pressing and holding the Normal and Delicate buttons at the same time for 3 seconds.

You can also try running the test mode shown at page 12 of the service manual.

If the machine is non responding and there is no code on display, then the problem is likely control module or control pad. Since the control pad looks defective, that is probably the part to replace.
Wow, thanks for the link and info but it didn't work.
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Old 01-01-2015, 12:20 PM
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The dishwasher's drain is clogged from all the aluminum flaking off your pans.





















Sorry
Just could not pass that one up.
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