How to check the Hall sensor on an LG washing machine?

Several signs indicate the failure of the tachometer of the LG washer. The drum may be stationary, or, conversely, uncontrollably rotate. LG direct drive washing machine is equipped with an inverter motor, so the tachometer is slightly different from those installed on machines with a collector motor. We will figure out how to check the Hall sensor, what constitutes an element and where it is located.

Check progress

To get access to the tachometer on the ELGI washing machine, it is necessary to disassemble the device. The first step is to de-energize the equipment and disconnect the washer from the house communication networks. After you need to move the machine to the place where it will be convenient to disassemble. It is important to ensure easy access to the back cover of the machine. Follow-up algorithm:

• unscrew the bolts holding the back wall of the case, remove it and put it to the side;
• using the 17 key, unscrew the rotor screw (it is important to ask someone to hold the drum from the inside to prevent it from rotating);
• remove the rotor of the electric motor;
• armed with a head 10, unscrew all the bolts that hold the stator assembly (removing the last self-tapping screw, hold the stator with your hand so that the element does not fall off and fall);
• disconnect latches and sockets from assembly.

Thus, you will get access to the Hall sensor. To diagnose faults, it is not necessary to disconnect the element. You can check the tachometer for operability using a multimeter. It is necessary to set the resistance of the device to 20 kOhm and apply the probes to outputs 1 and 5, then to 2 and 5.

The value from 5 to 15 kOhm should be reflected on the screen of the multimeter, if the resistance is less, the Hall sensor will have to be replaced.

Removing and installing the sensor

If a tachometer fault is detected, the only way out is to replace the part with a new one. The first step is to dismantle the old Hall sensor, for this, use a slotted screwdriver to disconnect the special latch. It is important to be careful not to damage the fasteners and contacts. After loosening the mount, the tachometer is carefully removed from the groove.

When pulling out the Hall sensor, do not damage the latch on the stator, otherwise this will lead to a high cost of repairs.

It is better to go to the store with the old removed sensor, this will help you not to make a mistake in choosing the part. When ordering an item in an online store, be very careful to consider the product labeling. Also check the purchased tachometer with a multimeter to make sure the new part is working. Often, defective components are sold at retail outlets, so precaution will not be superfluous.

Then you can proceed with the installation of the Hall sensor. Insert the element so that its recesses fully coincide with the guides on the stator. Gently push down on the tachometer until it clicks. Then all the accessoriesLG direct drive washing machine are installed in reverse order. After completing the assembly of the washer, connect it to the water supply and sewer, plug it into the mains. Check the equipment for performance.