Most modern washing machines equipped with digital displays have a diagnostic system designed to notify the user of any breakdowns that have occurred. A unique code consisting of a letter and a number appears on the screen, indicating a specific problem. Later in the article we will figure out what error H2 means on a Samsung washing machine.
Error interpretation
One of the common errors found in washing machines from Korean manufacturers is the H2 code, which indicates a malfunction of the water heating system. The combinations of symbols H2 and 2H should not be confused: if the first value is an error, then the second indicates the time remaining until the end of the wash. The letter H here stands for hours, i.e. 2H lights up on the screen indicate that there are 2 hours left before the end of the program.

Error 2h (not to be confused with error h2)
As a rule, error H2 on a Samsung washing machine is displayed if, ten minutes after starting the program, the water temperature in the device’s tank has increased by less than two degrees.
If your device does not have a digital display, it will also be able to report a problem. In this case, all indicators will start flashing, except one of two pairs: temperature 40 C and 60 C or 60 C and cold water. These pairs will glow continuously.
In the event of a breakdown and error code H2, the device may stop working.However, some machine models can continue to be washed, but in cold water. It is very easy to determine this; you just need to touch the glass on the loading hatch door with your hand: it will be warm if the water heats up.
Causes of error H2
If an error appears on the device screen indicating that the water is not heating, you need to know what problems it indicates and what to do to correct them. Typically, the H2 code indicates problems with one of the following components:
- A heating element;
- Temperature sensor;

Temperature sensor location
- Wires connecting the control module and heating element;
- Electronic module.
The first thing to do is try to “reset” the washing machine, this helps from time to time. To do this, you need to unplug the device from the socket and return it back no earlier than thirty minutes later. If the problem is not resolved, you should move on to other actions.
Replacing the heating element and temperature sensor
The heating element is the most vulnerable part of washing machines from a Korean manufacturer. Its replacement is carried out through the front wall; the device has to be disassembled almost completely, this significantly complicates repair work. To work, the owner of the device will need screwdrivers and a multimeter.
Now you need to do the following:
- pull out the powder tray and disconnect the drain filter;
- remove the top cover;
- Unscrew the screws, carefully disconnect and place the front panel of the washing machine on top;
- remove the lower decorative panel using a slotted screwdriver;
- remove the metal clamp attached to the cuff and carefully tuck it inside the drum;
- remove the screws holding the front part of the machine around the perimeter, disconnect it and move it to the side;

Removing the front panel
- in the lower part of the tank, near the counterweight, there are contacts for the heating element. You need to check the resistance using a multimeter. If the heating element is working properly, the value will be 25-30 Ohms; in case of a breakdown, the numbers 0 or 1 will appear on the display;
- if the heating element is really damaged, you should disconnect the wires from it and unscrew the bolt holding it;
- Shaking slightly, you need to pull out the element. If all else fails, apply WD-40 lubricant to the base and let it sit for five to seven minutes;
- remove the heater;
- install a working heating element;
- Assemble the washing mashine.
To change the temperature sensor, the same difficult work must be done. This element is located next to the heating element or at its base. It should be replaced and then the washing mashine should be reassembled.
Replacement of wires and repair of electronic module
In order to find the faulty wire, you need to use a multimeter. With its help, you need to ring all the wires connecting the heating element and the control module, and then replace the faulty one if it is found.
Repairing the control board is a more complex process. To fix it, you need to know how to do this kind of work. Otherwise, you can completely damage the electronic module. In some cases, to repair it, it is enough to solder the burnt out contacts, but to do this you need to detect them. It is very difficult to do this yourself, so it is better to contact a service center and call an experienced specialist.You should also be aware that when repairing the central board, a software update may be required, which is extremely difficult to do on your own.
Bottom line
If code H2 is displayed on the digital screen of a Samsung washing machine, this indicates a malfunction of the water heating system. Most often, the heating element fails - the weakest and most vulnerable point on devices from the Korean manufacturer, as well as the temperature sensor. Less often, error code H2 indicates a break in the wires connecting the heating element and the electronic module, and very rarely, a breakdown of the control board.
You can replace the heating element, temperature sensor and wires yourself, the main thing is to know how to fix the breakdown and be confident in the successful outcome of the repair work. To repair the control board, you should call a qualified specialist from the service center to prevent the situation from worsening.
The most common cause of heating element failure is scale formed on it as a result of the presence of a large amount of foreign impurities in the water. To avoid such malfunctions, it is recommended to install a special filter on the water entering the house.
Below you can find all the common error codes for Samsung washing machines. They will be divided into semantic groups for your convenience.