Troubleshooting of washing machine drain pump

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Washing Machine, as an important member of the household appliances family, silently undertake the responsibility of cleaning clothes, greatly enhance the convenience and comfort of our lives. However, when it goes on strike because of a faulty drain pump, the orderly pace of life is disrupted. This small drainage pump, although unremarkable, but as the key gear in precision instruments, once there is a problem, it will affect the whole laundry process. At this moment, let us with the curiosity of science and Technology and the yearning for a better life, together with in-depth exploration of the washing machine drainage pump fault response, to re-embrace the convenient worry-free washing time.

(1)、Fault performance

When the drainage pump fails, it will show a series of obvious abnormal performance. When a washing machine is running, it is often accompanied by abnormal noises, such as a sharp scratch or a dull crash, which are signals of wear, looseness or sticking of internal parts. Drainage capacity will also be greatly reduced, the original rapid discharge of water, but now become slow, or even a break in drainage, ground water can not be drained away in time. The pump may become difficult to start, sometimes can not start properly, need to try many times. In addition, the pump casing temperature will rise abnormally, significantly hot hand touch, which often means that the motor overload or internal short circuit. If these conditions occur, the need for timely maintenance, to avoid further expansion of the fault, affecting the normal use.

(2)、Causes and treatment of common faults

1. clogged drain pumps

①. Reason

In daily life, small items such as coins, hairpins and fabric scraps can easily get into the washing machine along with the clothes and get stuck in the impeller or inlet of the drain pump, like debris in a river blocking the flow of water.

②. Handling

Cut off the power of the washing machine to ensure safe operation. Open the washing machine back cover or the bottom of the drainage pump cover, gently rotate the impeller by hand, try to remove the foreign body. If the foreign matter is too tight to be removed manually, remove the drain pump and carefully clean the interior with tools such as tweezers. After cleaning, re-install the drainage pump, and drainage test to ensure smooth drainage.

2. drainage Pump Motor Failure

①. Reason

Drain pump motor after a long time use, may appear winding short circuit, open circuit or capacitance damage and other issues.

②. Handling

The multimeter is used to detect the resistance value of the motor winding to determine whether there is a short circuit or open circuit. If the capacitor is found bulging or leakage, indicating that the capacitor has been damaged, need to replace the capacitor. If the motor winding failure is serious, unable to repair, then you need to replace the entire drainage pump motor.

3. improper installation of drainage pump

①. Reason

If the drainage pump in the installation process does not maintain the level, or fixed screw loose, or drainage pipe connection is not tight, will affect the normal work of the drainage pump.

②. Handling

Re-adjust the installation position of the drainage pump to ensure that it is placed horizontally. Use tools to tighten all fixed screws, check the drain and drain pump connection is strong, avoid leakage or poor drainage situation. At the same time, to pay attention to the direction of drainage pipe, to avoid excessive bending or flattening, to ensure smooth drainage.

4. drainage pump control circuit failure

①. Reason

The control circuit board of the drainage pump may be damaged due to long-term use, moisture or electromagnetic interference, and the relay may also fail, resulting in the control signal can not be transmitted normally.

②. Handling

Inspect the control board carefully for visible burn-outs or component damage. Use multimeter to detect the coil resistance and contact on-off condition of relay. If found circuit board or relay damage, need to timely replacement of the corresponding parts to ensure that the control circuit back to normal.

(3)、Preventive maintenance advice

We can through some preventive maintenance measures to extend the service life of the pump, reduce the occurrence of failure.

1. use the right detergent

Excessive or poor-quality detergent will produce a lot of foam, which will not only increase the burden of the pump, but also easy to remain in the pump internal, breeding bacteria and dirt. Therefore, to select the right amount of high-quality detergent, in accordance with the instructions for the use of washing machines to add a reasonable, so that the drainage pump in a relaxed environment.

2. check the drain regularly

Drain pipe is the channel of sewage discharge, if the drain pipe is blocked, bent or broken, it will affect the drainage effect. Regularly check the drain pipe is smooth, clean up the debris in the pipe, to ensure that the drain pipe is not over-bent or squashed. At the same time, we should pay attention to the connection of the drainage pipe is tight, avoid leakage phenomenon.

Conclusion

The proper treatment of the washing machine drainage pump fault is a vivid practice of our harmonious coexistence with modern technology. Every accurate troubleshooting and repair, all embodies our attention to the details of life and intentions. Let us take good care of the family washing machine good helper, to enjoy convenient, comfortable laundry life.