Lock for washing machine

Did any of you, at least once in your life, have thought about how many important elements the washing machine consists of? For example, a lock for a washing machine - it would seem nothing special, but no. If the lock goes out of order, then about any washing can not go and speech. Why so, and how to replace the lock for a washing machine, we will try to tell in this article.

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The operating principle of the device for locking the hatch of the washing machine - automatic device

The device for locking the hatch, the automatic machine on the basis of the thermal lock operates very, very easily:

1. Inside is a bimetallic plate, as well as a thermocouple that heats up while applying voltage to it.
2. Under the influence of heat, the bimetallic plate instantly heats up, bends and locks the door of the loading hatch with a special latch.
3. Simultaneously the contact closes, which signals to the control module that the door has actually closed already - the selected washing program starts next.

Important! This contact is an important part of the self-diagnosis system. In the event that for some reason the hatch lock has not been able to work - or if the hatch has not closed properly or the fuser has broken, then the control module on the machine display will give a corresponding error.

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Reasons for the unlocking of the

hatch. Normally, when the washing machine program is completed, the hatch opens not immediately, but after a few minutes. What was the purpose of this delay? The thing is that after the program has stopped with the thermocouple the supply voltage is removed. Due to this, step-by-step cooling of the bimetallic plate takes place.

When its temperature reaches a certain value - it will take the original form, pushes the latches of the loading hatch - you can get the laundry and send it to the linen thread or to the dryer.

Important! Based on what we described to you earlier, the washing machine's UBL is an extremely simple and durable design. And even with the power outage, after a few minutes the lock for the washing machine will be automatically unlocked.

If, however, an electromagnetic lock is installed inside the washing machine, the lock will be removed only after the electricity supply resumes - this is a lack of locks of this type.

If the lock for the washing machine is broken - this process does not happen or it does not work correctly. As a result - you can not open the hatch and pick up clean things.

The most common cause of failure - the bimetallic plate has lost its properties. After a while, it is destroyed by constant heating, and after - and cooling. As a result of all this, it breaks down, and the lock itself can easily jam in a closed or open position.

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How to check the washing machine's automatic washing machine?

To check the hatch lock of the washing machine, you must locate a suitable power source, and then connect the same source to the corresponding contacts. When the voltage is applied to the thermocouple, the bimetallic plate will securely lock the lock - you will have to hear a characteristic click. If the lock is all right, check the remaining nodes.

For example:

• You must check the corresponding voltage from the control module. To do this, attach the tester probes directly to the contacts of the lock and run any program, while monitoring the presence of voltage.
• If there is no voltage, check the control module, as well as the electrical circuits of the UBL.

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Is it possible to start the washing machine program without UBL?

As mentioned earlier, the thermo-lock design has a special contact that relates to the diagnostic system of your washing machine. Once it goes into a closed position, the unit will realize that the loading door is securely locked and you can proceed to start the washing program.

If the lock of the washing machine does break, it will transmit one of these two errors to the special electronic module:

• The sunroof does not close;
• The lock is permanently closed.

In either of these cases, you will see a corresponding error on the display of your machine.

Important! It is not possible to start the washing program without washing machine, because it contradicts all safety protocols. A non-locked hatch can be in the open state, which will lead to immediate flooding of the room, and at the same time - and your neighbors from the bottom. Therefore, absolutely all washing programs are started only after the signal that the hatch is closed will be received.

But we can generate this signal ourselves, by simply closing the corresponding contacts.

Important! This action is allowed only during the testing of the washing machine. During the actual operation, this can not be done in any case, especially since this process is very difficult.

The best option is to replace the UBL and forget about the breakdown, because among other things, thermo locks are characterized by their fairly affordable value and do not represent a scarce commodity.

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We change the device for locking the hatch of the washing machine

Replacing the washing machine's washing machine with its own hands is reduced to a complete replacement of the lock. Let's see how to replace the lock of the washing machine.

Change the lock on the open hatch

Description of the replacement process UBL must start with the situation where you have the ability to open the hatch:

1. Arming with a screwdriver or pliers - it all depends on the design of the yoke, and then remove the clamp of the sealing rubber cuff.
2. Carefully remove it and unscrew with a screwdriver two screws - the caps of these screws are visible on different sides of the lock hole.
3. After that, put your hand in the space that is between the tank, as well as the front wall, take the lock out.

Important! To make it easier to remove the lock, you can deflect the body of the washing unit backwards - so that the heavy drum does not pressurize the cuff.

1. The same lock changes quite simply - remove the connectors with wires, then connect the newly acquired lock to them.
2. Next, install it on the prescribed place, and secure with screws.
3. After this, return the cuff to its place, making every effort to put it on correctly.
4. Fix the cuff with the removed collar, and then spend check washing.

What should I do if the lock jams in the closed position?

If you do not have access to the screws you just do not remove it. Therefore:

Equip tools and remove the top cover of your washing machine.

Tilt back its body and extend your hand through the body and drum - here you must grope the lock lock, and after - move it to the open state.

Once you have done this, open the hatch and proceed to the above procedure for replacing the UBL.

Now you know how the lock of the washing machine is arranged, how it functions and why it may not open on time or break down. We hope, even if the last one happened to you - you could repair UBL yourself without the help of a master.