LG FL Needs more water

[jlbrazil]

Load sensing

My LG doesn't use bars , but after the sensing rotation it says how heavy the load is in kg.
Almost everything it says 4kg , but with a full load of Towels it says 8kg , wich is the maximum that it can hold

 

[jetcone]

Rob and 3belt!! This is a HOT thread

thanks for figuring it out! Now I want to get into an LG and muck about! I have been wondering how the water sensor worked, it is a "tuned circuit" so there should be an easy electrical work around with a tunable resistor!

Love the PVC mod that is nice and permanent and classy!

Thanks Jetcone

 

[pullmyfinger]

Final dimensions

Your welcome Jet. After some testing, I ended up with a 2"X58" PVC tube to achieve the water level I want.

Works fine with all wash cycles as well as the rinse/spin only cycle.

 

[jetcone]

I was thinking on this

and started reading again about tuned LCR circuits, which this is one.
I bet one could insert a tuner capacitor to regulate the water level!

must get out my phsics texts again!

 

[3beltwesty]

LG Pressure Sensor 6601ER1006E.

Pressure Sensor is Diagram A410 6601ER1006E.

The one I have here that I have taken apart has 3 terminals.

It has a coil/inductor across the outboard terminals.

The center terminal connects to two 22 nanoFarad film capacitors in series.

One has the coil in parallel with the two 22 nF Caps in series.

The diaphragm is just like a normal washer pressure sensor, but it connects to the Ferrite core/slug that is inside the coil.

When one measures across one capacitor with a B&K 875 LRC meter; it measures about 46nF at 1 Khz test freq, since it sees it really as two 22nF caps in paralle1.

to model it better I need to remove the two caps and just measure the coil by itself.

The unit I have is marked 5V, but it is totally a passive device.

 

[jetcone]

Interesting

#2 is going to measure the same frequency ,no matter the direction of current. Thats why its take off is between the two capacitors and why they are identical in capacitance.
SO the machine control board must be sending an AC signal through this circuit in order to see the tuning change = the frequency change as the core to the coil moves.

So 3belt, can you measure the frequency applied by the machine control board with the LRC meter?

 

[3beltwesty]

"water level frequency".

The B&K 875 LCR meter here uses a fixed 1 Khz test signal.

To see what the WM2501 LG washer senses as the frequency, one pushes the CUSTOM and PRE-WASH buttons at the same time.

This gives off digits on the display of the washer.

One takes this number and multiplys by 0.1 and adds 20 to give the frequency in Khz.

Thus a reading of 42 on the display is = ( 42* 0.1 ) + 20 = 4.2 +20 = 24.2 Khz.

The jargon used by LG is "water level frequency", odd but it sticks.

FOR testing with no load in the washer; WASH/RINSE and SPIN SPEED buttons are pressed at the same time, along with POWER too. The START/PAUSE then cycles thru the test modes. The display reads in either rpm; water level frequency; or steam generator temp.

 

[pullmyfinger]

Westy, my WM2501 does not have a "custom" button? Humm...

 

[3beltwesty]

Manual is in error

The comment about the "Frequency by ... one pushes the CUSTOM and PRE-WASH buttons at the same time." is out of the offical LG service manual for the WM2501HV , thus it is in error.

Errors like this happen in manuals, they writers "cut and paste" and use an older manual as the template.

We will have to experiment to we what two buttons are required thus by experiment, it it probably a PRE-WASH button and another is my wild guess. I did this a few weeks back and did not even realize the manual is in error.

 

[pullmyfinger]

Westy, do you have an online source for a service or training manual for the WM2501? Thanks!

 

[3beltwesty]

poor manual at best

The manual I got is a hodge podge of printed pages, a physical copy that cost about 55 bucks. It is printed on metric above 11x17, not sure if I can scan it. The page order is such all pages are there, but the order is scrambled, reversed, mixed.

Some of the older LG manuals are far better. This manual does not even have a parts list like in the Sears link up the thread. Thus if the diagram has say part S101 for the stator; there is no table with the LG part number like Sears has.

It is more of a thrown together partial manual at best, and a real expensive one.

Sears has the same manual cheaper; but they will not sell it to morals. One has to be in their inner service/click group to buy the manual.

I do not think the service manual exists on the web, I tried gobs of searches. To find a seller of the paper manual was tough too. I only found Sears as a vendor; then used the LG part number Sears had to find another seller

 

[pullmyfinger]

My added volume mod has failed. It worked fine for several weeks, then without warning started over-filling.

After removing the added mod, I removed the WLS and dissected it. I found that by simply turning the threaded cap on top clockwise, increasing spring pressure on the diaphram, the frequency would increase thus allowing for a higher water level.

Removal of the WLS is not needed, the threaded cap can be turned easily with a screwdriver in its current location. Simply turn the cap during the fill cycle but before the circulation pump begins.

 

[3beltwesty]

Possible Button Sequence for Water Level Frequency

Last night during a wash with the WM2501HVA I tried many different combos of "pushing two buttons", sort of like a 2 year old or Monkey!

I found one set that may of may not be the "Water Level Frequency" number that is used in the calculation.

The two buttons were the small black Steam button and Giant Wash/Rinse button. One time the reading was 24, another 41 on the time readout. Sometimes no number appears; or there is a delay. The manual says the water level display number can is 25 to 65 in one place.

a reading of 24 would be 20 + (24 * 0.1 ) = 22.4 Khz

a reading of 41 would be 20 + (41 * 0.1 ) = 24.1 Khz

Next time I will note the part of the cycle in use.

 

[jetcone]

That adjustment makes sense

Pullmyfinger, the spring pressure increases the force needed to send the iron plunger up the core, which translates to a higher head of water in the drum.

No one has spotted that screw before, can you photo it and post it?

I did the same Mod on my Speed Queen but that WLS has 5 screws so I had to tear it down to see which ones neede to be turned.
Thanks

jet

 

[3beltwesty]

The screw on the sensor makes the sensor produceable at a lower cost. Each is probably adjusted when built and gooped.

I probably should have posted an image of the extra sensor I bought to show the top piece with the screw.

In some LG manuals/models the reading the LG machines "number" and just dviding by 10. With the WM2501HV the manual has that divide by 10 and add 20 equation.

The link below is a traing manual for another LG washer; it has a lot of cool info,

http://www.kirklandhouseforsale.com/pdfs/wm2496_training_manual.pdf

 

[pullmyfinger]

Jet, I already put everything back together. Maybe Westy can post a pic of the top of the WLS.

 

[pipesster]

LG waterlevel screw adjustment

need ing a bit more water in my LG
After reading this post I put a ruler in my lg 1069 and measured the fill level. it measured just 5" at the back of the drum. It pumped out less than 5 gallons on drain cycle.
I turned the water level screw clockwise 1 full turn and re-measured, the drum filled to just under 7" at the back, about an inch up on the glass door.
It pumped out about 8.2 gallons on drain, at 8lbs a gallon thats an extra 25 lbs weight in the drum so backed the switch up 3/4 turn and filled again. filled to 5.5 inches just covering the door gasket not touching the glass, this time pumped out just under 6 gallons on drain.
So looks like 1/2 turn = 1" in water level, and roughly 1/4 turn = 1gallon or 8 extra LB in the drum, which loads up the suspension and bearings more, decreasing longevity exponentially with each additional gallon.

 

[pipesster]

waterlevel adjusting screw

Heres a pic of the waterlevel sw, its one of those frequency measuring jobs.
need large phillips, like a p3.
As I posted , 1turn = 2" clockwise to raise level
Also there is an adjustment in the programming presets but had already set that to "high" to get the original 5" level it started at.
At 1/4 turn should add about 3 to 4 gallons to the total cycle, will see how this does.

 

[pipesster]

Heres a pic with switch adjusted 1 full turn, you can see the water on the glass, about 8 gallons!
up from less than 5

 

[rayjay]

Samsung

Get yourself a Samsung front loader. A few turns and you will get all the water you want. Start out slow, then increase till you get the desired amount.