I think that calcium has affected the water pressure on the inlet filter and the spray arms won't turn. The fault is intermittent though..I have removed the filter and cleaned the nozzle, but need to open it up.to unblock it completely. Can this be done on this model?

John Hodgson

I will try and help with this problem Indesit DSG 573NX dishwasher

Good morning. The first thing you really want to do is remove​ and ​clean the spray arms​, ​ these can fill with bits which will stop the rotation of this spray arms taking place​, if this does not cure things​ then it might be worth taking the motor off and inspecting the impeller - this is what drives the pressure of the water to the spray arms and if this is not in good condition then this will affect the pressure and the water cycle. The video below will help you understand how the motor comes off

Indesit DSG 573NX dishwasher