Our Hotpoint dishwasher is showing H in the display and bleeps ever few seconds. On slectioning the programme the machine runs for a few minutes then bleeps H shows on display, the machine takes in water and after reseting drains the water and we end up with the H display and bleeping.
No error code in the manual and Hotpoint customer service are saying no H code error also checked the start delay which is off.
If it is under five years old I would advise getting Hotpoint out to it under the five year parts warranty and just pay the labour.
The display pcb may be faulty but that costs over £100, fault could also be main pcb which would cost much more.
The main motors and heaters are also prone to failure on these Indesit made machines. 🙁