Unpleasant odor of the clothes after washing means that electric heating tube is covered with scale. The second sign of electric heating tube breakage is poorly washed clothes. In case of breakage of heating element, it is not heated, despite the clothes are washed at high temperature.
As mentioned above, the main cause of electric heating tube malfunction is the scale formation. When water is heated, the salt is decomposed. That’s water is poorly heated and make the water heater to work at full capacity. As a result, the electric heater is overheated and breakes.
New modern models of electric heating tubes are covered with a separate layer that prevents the scale formation. Some models are made of special anti scale materials.
Electric heating tube replacement is a complex process, so it must be implemented by specialists.