The lock on the Indesit washing machine does not work

When the lock on the Indesit washing machine does not work, you will have to forget about washing for a while. With a half-open drum without proper sealing, the washing machine will not start, otherwise both the room and the equipment itself will suffer. It’s better not to waste time and start looking for the cause of the door not closing. Both mechanical failures and factory defects with a faulty UBL can lead to problems. We'll figure it out and fix the situation.

What could have broken?

It is difficult to say immediately and definitely what led to the faulty lock. Washing machines from Indesit may not close at once for several reasons. So, the following problems prevent the locking mechanism from working:

sagging door hinges;
displacement of the plastic tongue on the lock;
breakdown of the hatch locking device;
worn lock guide or rubber gasket.

When the hatch door is open, the Indesit washing machine will not start the cycle and will not start drawing water.

The machine’s self-diagnosis system often helps to understand the nature of the problem. If the UBL is not working, the washing machine will display an error by corresponding lights on the dashboard. Some modern Indesit models can also display a fault code on the display. the hinges may have sagged

As a rule, the hatch does not close either for mechanical or electronic reasons. In any case, washing will not begin until the problem is discovered and appropriate repairs have been made. Our analysis of the main “symptoms” and the necessary “treatment” will help in diagnosis.

Mechanical breakdowns

First of all, you should check the lock for mechanical damage.This includes internal damage to the locking mechanism, misalignment and sagging of the door. This kind of “natural” wear and tear on the machine can be caused by careless handling of the hatch: slamming it too hard, hanging heavy things, or children “riding” on the door. If the machine does not close at all and a characteristic click is not heard, then there is a problem with the “mechanics”. You can understand the nature of the breakdown by the “symptoms”.

If the door does not close at all, then the problem is misalignment. In simple words, the door hinges are sagging and the lock tongue does not fit into the groove on the body. The situation is corrected by tightening the hinges and adjusting the door level.
If the hatch closes but does not lock, then the tongue itself is suspect. Probably the metal rod holding it fell out or became warped. In any case, you will have to disassemble the door and return the parts to the correct position. When the latter is impossible, the whole mechanism changes.
If the hatch closes and locks, but there is no click, then the guide does not cope with its function. This is a thin plate that is intended for final fixation of the door. When it is erased or changes the specified position, the joint does not work, and the “hook” does not work.

To solve mechanical problems in the lock, it is necessary to disassemble the door and evaluate the condition of each element. If the part cannot be adjusted or repaired, then a full replacement will be necessary. The main thing is to choose the right new constipation, focusing on the old model and serial number of the Indesit model.

UBL does not fulfill its function

When a mechanical lock is triggered, the first click is present, but the second is not, then the problem is UBL.The hatch locking device is responsible for additional electronic locking and is also a mandatory step in closing the machine. Without it, the user will easily open the door in the middle of the cycle, which will lead to disastrous consequences. Therefore, even with complete sealing without protection in the form of electronics, the machine will not start the wash.

If the UBL is faulty, the door will not lock. The board refuses electrical fixation for the following reasons. UBL repair required

Wear. Long-term operation also affects the bimetallic plates of the UBL: they wear out and lose electrical conductivity. It is not possible to repair a worn-out device - only replacement.
Blockage. The locking does not work if debris or other small foreign objects get inside the device. To correct the situation, it is enough to disassemble the UBL, find the “obstacle” and remove it.
Problems with the control board. In the worst case, the UBL loses contact with the electronic unit of the washing machine. The reason lies in burnt tracks, triacs, problematic firmware or a system glitch. First, it is recommended to restart the washing machine, and if the error repeats, carry out a comprehensive diagnostic of the control module.

Diagnostics of the Indesit control board should be carried out by professionals, otherwise there is a high risk of irreversibly damaging the part.

The user can check the locking device for wear and blockage independently and at home. Diagnostics of the control board should only be carried out by a specialist from the service department. The fact is that the electrical unit of a washing machine is an extremely fragile and tamper-sensitive part that requires careful handling and special equipment. Unlike UBL, the module is very expensive, so experiments will not be cheap.

Testing the UBL and changing it

But a door that does not close does not always require immediate replacement of the UBL. Before changing the blocker, you need to make sure that it is faulty. To evaluate the performance of the device, you will have to remove the device, inspect it and check it with a multimeter. We act like this.

We disconnect the Indesit washing machine from all communications, including sewerage and water supply.
We open the hatch. As a rule, if the mechanics worked perfectly, the door remains closed. Then we unlock it manually: unscrew the top cover, tilt the washer back, stick your hand to the lock and try to move the latch to the side with your index finger. You can proceed in a similar way from below, after first removing the bottom.
Loosen the outer clamp on the cuff and tuck the elastic inside the drum.
We find the lock, loosen the holding screws and take it out.
Disconnect the wires connected to the UBL.

Before removing the wiring, it is recommended to mark the conductors and record your actions on camera to avoid errors when reconnecting.

We take out the UBL.

Having taken the blocker in your hands, you can begin checking. First of all, we take the factory instructions and study the electronic circuit of the part. We turn on the multimeter to measure resistance, bring the probes of the device to “phase” and “zero”, and then evaluate the result on the display. If a three-digit number appears on the display, then the UBL operates without interruption, otherwise it will need to be replaced. It is also recommended to continue testing by moving the ends to ground and common contact. When “0” or “1” lights up on the screen, everything is definitely in order. let's check the UBL

There is no need to try to repair a faulty UBL. Firstly, it is useless with disposable blocker parts. Secondly, the new device is inexpensive.In order not to make a mistake with the replacement, you need to tell the Indesit serial number in the store. Installation will not cause any difficulties: just act carefully, do not forget about safety precautions and follow the instructions described.