Hello, my name is***** is caused usually by a blockage between the pressure chamber on the left side of the appliance at the front, and the pump... There is a tube that connects the two that gets blocked.. clean this tube out and you may be up and running again... If it is still happening you will need to replace the pressure chamberKindly be patient whilst awaiting any responses from me as I'm not constantly available.
hello George ,my name is Albert,
I have cleaned out the gunk from both the chambers , I also get two program lights come on , on left & middle buttons
am I able to get the pressure chamber on its own
Hi Albert.. the pressure chamber is Bosch part number 00263186 and is available from the Bosch Website Here
Don't forget to clear the tube at the front of the pressure chamber
thanks that's great