Repair LG WD 10120 ND washing machine

Background brief: washing machine transported between cities, transit bolts were lost and were borrowed from Samsung. Different views because WD 10120 ND in bowels carries synchronous AC motor with external rotor. Belt is not needed, plastic drums, typical of the Samsung, do not go in the kit. On arrival it seemed that the device is frozen. It thought?

Problem Description 0E

On arrival:

1. Put.
2. Embedded ball valve from the cold water.
3. Summed up the supply.

At the first start of the program with a list of Cotton total duration of 2.5 hours options it thought process depend: unit scored water, rinsed and rose. Rare prick up loud knocking is heard from the bathroom in the living room. Strikes accompanied by washing.

What made:

• Turn off the power.
• Restart with the installation of 30 fast (it takes half an hour).

About the 14th minute of the assembly stood up and gave an error 0E ...

For reference. Error 0E constantly discussed on the Internet, but the service manual says succinctly: Drain Trouble, meaning - failure of the pump. Dance from the water pump.

What is done

No wonder the authors struggled on the portal. Pompey came without external prompting. It is known that the item is a synchronous motor with a magnetized rotor structure resembles a shaded pole:

• Rectangular magnetic.
• The two coils.
• At one side of the rotor magnetic circuit is embedded.

The device is powered by alternating current. For disassembly easier to put the washing machine on its side. The bottom is missing (this is unusual).

For the test podvernuvshiysya aluminum wire conductors with an area of ​​4 square millimeters. Motor smartly spun, showing that the device is live.

Service instruction

On servicemanuals.pro site I found a brief instruction on repair (Service Manual). On page 14 is a list of errors on the display.

Actually, the reason is clear. Screen says. In paragraph 7.2 it was found a positive quality of the service manuals: the order of passage of self-control equipment.

We do translation from English:

1. While holding the two buttons at the same time washing and spinning, press Power.
2. You hear a double beep of the buzzer.
3. Press Start / Pause button, turning units and components in the order described:

• rotation of the drum in a clockwise direction at a speed of 47 revolutions per minute. The frequency is displayed display.
• Low spin cycle - 590-650 RPM.
• High spin cycle - 950-1050 rpm.
• Check the intake valve pre-wash. On the screen - the water level lowers in the range of 265-225 number.
• Verification of the intake valve in the main washing operation. Others - similarly.
• In this case, similarly to 6. No fence hot water.
• drum counterclockwise at a rate of 47 revolutions per minute.
• PETN Test (3 seconds). On the screen - the current water temperature.
• Check water pump. The display - medium level of water in the tank.
• Auto.

test the water

Readers understand that paragraph 9 immediately attracted attention. To this point the pump is already restored to the place, but did not dare include laundry for good reason. We began with a test:

1. Apply power to 230 V.
2. Connected the water supply hose.

Then hold down the button, the buzzer will make a sound 2 times, all the lights lit up.

I went:

1. The first press Start zavraschalsya drum counterclockwise when viewed from the front (as housewives used to do). Distinctly heard the roar and the sound of heavy rare. On the screen - 45-46.
2. Further tests went according to plan. At step 2 and 3 occurred clockwise with increasing speed (above 900).
3. Then he poured water display persistently lowered figures.
4. In the seventh step of rotating the drum in a clockwise direction.
5. And lo and behold! Earned pump. We are not prepared, 10 liter bucket appeared perfectly dry. 1,000 grams went to the floor.
6. Pulled the cord so as not to fill the neighbors.

Thus, the pump worked. Embarrassed by a knock. Opened the back cover.

Instead of the promised 6 bolts instructions found one.

He gave a strong longitudinal axis backlash (at least 5 millimeters). Unscrewed, removed the outer rotor of the synchronous motor. Without features. Tightened properly, the backlash was gone immediately. Fuss continued for another 40 minutes, but looking back, we note that the washing machine has proved to be repaired.

The discussion of the results

Thus, breakage 2, instead of 1:

1. A broken pump.
2. Longitudinal backlash drum axis, causing the rare bounces during operation.

It is still unclear why the pump is earned. Do the following:

1. Removing the manner described above.
2. Testing of hand. Scroll shaft shown two loosely fixed position around 180 degrees. A typical pattern. Sometimes four fixed positions (90 degrees).
3. The test is a washing machine using 230 V.
4. On-site installation.

So, after transporting the pump was inoperative. Short-sales service to improve the situation due to unknown reasons the authors. The pump runs, is now pumping water. Backlash is eliminated rigid central tightening screw. Now washing machine runs quietly, as before.

The unusual

The attentive reader will notice that the engine is at low speed spun from the viewpoint of the master in a reverse direction when compared to the instructions from the table. According to the video from Youtube will verify the color-coded wires in connectors of the Hall sensor and power coils, shows the correct assembly. Since the machine works, the authors have decided not to pay attention to the specified change. Hopefully, a review has been useful.

P.S

Hose for emergency emptying, on a lower portion of the front panel does not drain for unknown reason. I had to unscrew the filter and working scoop. When dismantling it turned out that hose and leaned Slip inside. A common defect of long stored equipment. If you will find yourself in a similar situation, tilt the machine back and arm hose Give normal straight shape.