Bosch Exxcel SGS4442 not filling with water?

Bosch Exxcel SGS4442 not filling with water
This 6 year old dishwasher has stopped taking on water. I tried the reset holding in both buttons and it tries to do a cycle but no water comes in. I took the hose off the back to check the hose was not blocked and water is coming out of that. I cannot see anywhere of checking if there is a blockage somewhere.

People had a question on Indesit machines here about tilting 45 deg. Could this be the same problem?