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
Make sure water is cut on at faucets. Make sure screens in hoses and valve aren’t clogged with debris. Make sure hot and cold water hoses aren’t reversed.
From the diagrams on line, I think you have to remove the bottom panel to get at the screws in the bottom. The top appears to be able to be pried up on the front side. That's as far as I can help you.
If it trips the RCD then you have an electrical fault. Washing machine can do this once they are a bit old, or if they have had a water leak. The water gets into the electrical equipment and causes a fault that trips the RCD. If you have a circuit without an RCD try that. If it still trips, then the fault is serious and you will need to get it repaired. You can also try putting the washing machine into a warm place for a few days to see if it will dry everything out. Sometimes this will cure a fault if it is due to dampness.
If your description is accurate and the drum is loose enough to put the drive pulley or wheel so far out of alignment the belt has come off it is almost certainly the main bearing that is at fault.
The machine must have been making a lot of noise for a considerable time to have reached the current state and it would be wise to expect more damage and expense than is usual.
