If its anywhere from 3-6yrs old then its a water level and or top spray arm problem.
Check sump hose for blockages and side chamber.Is the top arm rotating? They tend to where and not rotate
rocker wrote:This machine is leaving (brownish granules) after wash
Granules? maybe you refer to the silicone granules from the Ion Exchanger coming adrift? They appear very tiny, round and have a brown glassy appearance, but then it must be a very old model for it to do that though? 😕