If your washing machine does not turn on lights or make noises, it probably has come to an end. You have correctly performed the necessary tests. Now I recommend that you request the services of a specialist. You will save time and money. Believe me.
I noticed the washed dose this if I run a bath sounds daft but it's like it's not getting enough water feed whilst I'm using water else where and once my bath turns off error message goes away
You may think u have checked all but underneath there is a black soft rubber hose and sometimes a sock can get sucked into this and stops draining worth a try if not maybe your pump is gone
Remove the hose to the sensor switch at the tub end and check for obstruction. The small container on the side of the tub may be clogged. Clean with a small drill or piece of wire.
The User Manual for this model was of no help ... other than to suggest unplugging the unit which you already did ...
I could not find specific error codes for your model ... but F06 on Hotpoint washers in general have two definitions for F06:
F06 - Door lock fault
Issue: Washing Machines door cannot be opened or closed / when the door is closed the machine the programme will not start.
F06 - Program selector dial
Since you are having door issues ... then I would say the door lock is indeed the problem.
Check to make sure there is not any debris in the door lock insert, but my guess is that is not your problem.
It could be the latch on the door or the lock switch mechanism in the machine housing. Odds are it is the locking mechanism
Here is a Hotpoint You Tube on how to replace ... but it is not for your specific model
https://www.youtube.com/watch?v=p14EEa4AYGM
Good luck with your troubleshooting!
Without testing I would suggest that the heating element has shorted to earth enough to take out the RCD.
You should test with a multimeter between the element and the outer sheath which should show 0 if Faulty and replace the element, otherwise it is something else in the circuit i.e. temperature cutout causing the earth leakage.
A very simple solution to r epairing all by yourself is getting help from handbo oks, they're very detailed and complete in every way so for me it was my best source to repair
one of the top sites for this is https://big-manuals.com/
Either lay the machine on its back , you can see the motor underneath, the brushes are on the back end of the motor , or with the machine upright, remove the back plate , the motor is bolted onto the machine at the bottom