INDESIT idl40 Dishwasher

Hi

Our Indesit dishwasher has developed a fault where it keeps filling at the start of the cycle and not stopping! It is less than 2 years old so although out of warranty, I feel it is too soon to replace at this time.
Can anyone advise on a possible cause and solution please? Is there a float switch that culd have got stuck?

Thanks for taking the time to read.

Chris

drain hose too low down or presure switch stuck .presure switch on the right hand side remove side panel .

Thanks for your response Rocks 1. Will check first thing in the morning and post the result.