FDW60 Aquarious fault lights 4 (Eco) & 5 (Fast)?

Hi there,

I loaded and turned on my FDW60 dishwasher as normal but when it had finished there was water in the bottom pan and the dishes were still dirty. Warning lights 4 (Eco) & 5 (Fast) were flashing.
I have emptied the dishwasher, cleaned the filter and drained the remaining water from the pan and run another cycle but get the same issues with the same error codes. The dishwasher pumps out the standing water at the beginning of the cycle and and takes on new water however there is a noticeable bubbling/frothing noise.

I thought it may be the heater but when the cycle has finished the water remaining in the machine is still warm.

Has anyone had the same issue or have any idea how I can fix this?

cheers

tom