Patent ID: 8627524
Filing Date: 2014-01-14
Classification: D06F

Abstract:
1. A method of operating a clothes washing machine having a wash tub, said method comprising: prior to starting a washing cycle, letting an amount of water into the clothes washing machine up to a first pre-set level in the wash tub or up to a known volume in the wash tub; taking from the bottom of the wash tub the water previously let into the machine and re-circulating the water such that the water is sprayed into a washload-holding drum arranged inside the clothes washing machine, such that the water is sprayed onto clothes to be washed contained within the washload-holding drum; rotating the washload-holding drum at a low speed with alternate rotation cycles in two directions of rotation along a horizontal axis of rotation; detecting a height of the water from the bottom of the wash tub, the height of the water from the bottom of the wash tub being lower than a second pre-set level; and carrying out a sequence of water refillings and water supply interruptions in the clothes washing machine, and measuring an elapsed time between the end of a previous water refilling and the beginning of a current water refilling, when the height of the water from the bottom of the wash tub is detected as being lower than the second pre-set level, wherein each of the water refillings, with the exception of the first water refilling, is done until the height of the water from the bottom of the wash tub reaches a previously defined level, the previously defined level being previously defined solely dependent on the measured elapsed time between the end of the previous water refilling and the beginning of the current water refilling.