Why doesn't my LG washing machine heat the water when washing?

In progress operation of washing machines Various problems may arise. Often people are faced with the fact that the device does not heat the water. In this case, things wash much worse, so you have to solve the problem. Some people immediately call a technician, while others try to determine the problem on their own. If your LG washing machine does not heat the water during washing, you will have to immediately find out the reason. Only after this can you begin to deal with the problem.

How can you tell if the machine is heating water?

It happens that after washing it turns out that the laundry was poorly washed. In this case, the person used the same powder and usual regimen. It can be assumed that the problem lies in the lack of the required temperature regime. That is, the unit washed things in cold water. You will have to check whether the liquid has heated up.

This is not difficult to do, and you will need to select any mode in which the temperature heats up to 60 degrees Celsius. Approximately 30 minutes after the start of washing, you will need to touch the glass of the hatch. If the machine has a top loading, then you need to place your palm on the top cover.

When the elements are warm, you can be sure that the water has warmed up. If they are cold, then the LG machine is faulty. When the wash is finished, you will need to identify the problem and fix it.Care must be taken to avoid damaging the unit. In this case, it will be possible to carry out repairs quickly and without negative consequences.

Causes

There are various circumstances that lead to problems with the washing machine. We'll have to figure out what exactly we're dealing with. You need to consider each reason and try to determine which element failed.

Main types of breakdowns:

The heating element does not heat the water to the desired temperature. This device works on the same principle as a boiler. On average, it lasts from 5 to 10 years. The duration depends on how often the washing machine is used. This part cannot be repaired; it must be replaced.
The temperature sensor does not work. It is he who activates and deactivates the heating element. If the element does not function properly, then heating will not occur.
The pressure sensor in the tank area is faulty. If it does not send a signal to the ECU that the tank is filled with water, then the heating will not turn on.
No voltage is supplied to the heating element. This most often happens if the cable chain breaks.
Failure in the control module assembly.

It’s worth taking a closer look at how to troubleshoot an LG washing machine. If you have no experience in repairs, then it is better to immediately call a specialist. He will diagnose and quickly fix the problem. You can try to repair the washing machine yourself, following the instructions.

Scale has formed on the heating element

Even if the heating element is working, it may also not perform its tasks. The problem lies in hard water, which contains a lot of magnesium and calcium. Because of this, scale appears on the heating element, and the water does not heat up. Thermal insulation leads to the heating element constantly overheating. As a result, it fails.

This problem is quickly resolved.To do this, you need to use one of the products that is used to clean the heating part. The correct solution would be to pour approximately 100 g of citric acid into the powder tray. There is no need to put laundry in the drum, and the wash should be started in this form. You will have to select the 60 degrees Celsius mode, and the time should be about 1.5 hours. As a rule, this is enough to remove scale.

The wiring is broken

If the water stops heating, then we can assume a break in the wiring that goes to the heating element. To understand what you are dealing with, you will have to inspect the wiring inside the SMA. If the wires are frayed, then they will need to be soldered and insulated. It also happens that the problem is not detected. In this case, the wiring will be fine, but the control unit will fail.

The heating element does not work

When the water does not heat up during washing, you will have to check if there are problems with the heating element. For this use a multimeter. With its help you can understand what problem you are dealing with.

What to do:

Unplug the machine.
Remove the back cover of the SMA.
Find the heating element, which is most often located under the drum.
Remove the wires connected to the heater.
Measure the resistance with a multimeter, which should be from 24 to 40 ohms.

In the event of a malfunction, an open circuit will be indicated. The burnt part will need to be replaced with a working one. To do this, you need to remove the fastening nut and remove the heater. After this, a new element is installed, a wire is connected to it and washing is carried out for testing. You need to make sure that the rubber gasket does not leak and that the water heats up.

The electronic control unit is faulty

Sometimes it malfunctions, which causes a lot of problems.We have to flash the microcircuits and carry out reprogramming. It happens that a malfunction occurs due to broken or oxidized contacts. Such problems can only be determined by a master, because they are difficult for an ordinary person to identify.

Problems with the temperature sensor

Although LG machines are characterized by stable operation, their temperature sensor may break. It is he who controls what the temperature in the tank should be. If the LG washing machine does not heat the liquid at all or does not reach the desired mode, it can be assumed that there is a problem with the sensor. Using a multimeter you can see if it is working.

Instructions:

It is necessary to remove the CM housing cover.
You will have to disconnect the wires from the sensor.
The thermistor must be carefully removed and replaced with a new one.
Connect the wires to the sensor.

If you do everything correctly, then the problem will disappear. The main thing is to find out why the LG machine does not heat the water, and what to do in a specific case. If you cannot cope with the task yourself, you should contact a specialist.