Hotpoint SDD910X error f13 ?

Hi,

We have a Hotpoint dishwasher model: SDD910X and it's showing error f13. It is 4 years old.

It stops after few min on any other program except rinsing. That is the only one that works at the moment.

I don't know if this is something that I can fix myself or we would need to call someone in.

Any advice is much appreciated!

Thanks!