Once the tablet drops in to wash it starts to smell of burning, on opening the water level has not covered the element? around 3-4 years ago i replaced the circuit board, does this control the fill-up or is there other components to look at to?
the fill up is controlled by a pressure switch and a pressure chamber.something has to be wrong or blocked in this area and pcd wouldn't normally give this type of fault.water doesn't cover the element only the filter part