After washing, the laundry remains gray, but complex stains are not output? Do not rush to sin on the powder, perhaps the reason is the low temperature of the water. Why does the Samsung washing machine not heat water? There are several reasons, starting from an incorrectly selected program and ending with a breakdown of internal elements. We list the possible problems and describe in detail the repair of the machine.
The washing machine does not heat water: external causes of the problem
Did you specifically choose a model with the Eco Dough function to better wash your laundry? If things get worse and worse with time, then you should pay attention to the operation of the heating system. First of all, check whether the programs really pass at a low temperature:
- Set the high temperature mode ("Cotton", "Synthetics").
- After fifteen minutes, try the glass of the hatch.
Ideally, it should be warm. If it’s cold, then the problem is taking place. Do not be alarmed; serious repairs may not be necessary. Start with this check:
- Take a look at the control panel. Is the mode selected correctly? Is the temperature set accidentally low? Then it is enough to change the tinctures to enjoy the effective operation of the washer.
- Recheck the connection of equipment to communications. Hoses should be located strictly according to the instructions, otherwise self-draining of water is possible. Due to the constant circulation, the washer does not have time to heat the water.
Are external settings and connections OK? Then it's time to move on to heavy artillery - checking the internal parts. How to do this, we will tell in the next paragraph.
Samsung has stopped heating water: major problems
The heating element (TEN) is responsible for heating the water in the washer. A temperature sensor is installed in the heater case (thermistor, in the photo there is a white square element), which controls the temperature of the water in the tank and sends a signal to the module to turn off the heating.
Here are the main reasons why the heater fails:
- Scum. Hard water in the water supply contains impurities that eventually settle on the parts of the AGR. Covering the heater, the scale blocks heat transfer. As a result, the element overheats and burns.
- Cliff Another reason for overheating and breakage of the internal spiral of the heater is voltage drops in the network. Therefore, experts recommend using a stabilizer.
- Damage to the temperature sensor. If the sensor does not inform the module about the end of heating, the heater continues to work. The result is overheating and failure.
Another rare and most serious malfunction is the burnout of the triac on the control board. This part is responsible for the operation of the heater, therefore, in the event of a malfunction, the heater is simply not activated.
Dismantling the AGR and the search for the heater
In most Samsung washing machine models, the heating element is located behind the front panel. To get to the heating element, it will take time and patience.
Important! If you are not sure where the heater is located, take a look at the instructions.
Prepare a screwdriver, water tank, and multimeter to test the heater. Proceed to disassemble:
- Unplug the plug, turn off the water inlet valve.
- Open the small basement under the loading door.
- Replace the container, unscrew the filter and drain the water.
- Remove the detergent tray by pressing the latch in the center.
- Remove the top cover of the CMA by unscrewing the two screws on the back.
- Remove the control panel by unscrewing the fixing screws on the sides. You can not disconnect the wiring, just lay the panel on top of the case.
- Bend the hatch seal. Use a screwdriver to pry the metal clamp and remove from place.
- Put the rubber into the drum.
- Remove the bolts of the sunroof lock device (UBL), disconnect the wiring.
- Unscrew the bolts around the perimeter, lift and remove the front cover to the side.
Great, the machine is ready for use. Now you can proceed to the diagnosis and replacement if necessary.
Checking and replacing the heater and temperature sensor
Right under the tank you will see the conclusions of the heating element. To check a part for serviceability, proceed as follows:
- Disconnect the heater.
- Turn the multimeter into ohmmeter mode.
- Attach probe probes to heater contacts.
- Follow the on-screen readings.
A healthy element will give a reading of 25-30 ohms. In the event of a breakdown, the heater will display from 0 to 1 Ohm. To replace a part, follow the instructions:
- Take a socket screwdriver.
- Tighten the central nut of the heater.
- Push the bolt in and gently remove the part from the tank.
Now you can verify the presence of scale. Sometimes, in order to return the element to working capacity, it is enough to remove a thick layer of plaque. Do not rush to complete the installation, first remove the thermal sensor from the heater housing and ring with a multimeter. A working part at a temperature of 20 degrees will show 6000 Ohms. If you lower the sensor in hot water about 50 degrees, then its resistance should fall and amount to 1350 Ohms.
To replace, simply put the new thermal sensor in the slot. A functioning heater is also installed in the reverse order. Do not forget to first clean the seat from dirt and scale, also lubricate the seal with machine oil so that it fits tightly in the hole.
Repair work completed. To check the functioning of the heater, run Samsung Diamond or another model for a cycle with hot water.
Diagnostics of the control board, which could also provoke a problem, is best entrusted to the master. To prevent future problems, use emollients for water, start preventative programs with the addition of citric acid from scale.