I have a HJA8630

Are you sure it isn't HJA8630?

It appears to be unknown where I am in Canada. Generic door seal replacement videos. They all follow a theme.

https://www.google.com/search?q=Lamona+dishwasher+replace+door+seal

https://www.google.com/search?q=Lamona+HSA+8630

..

Most likely a defective control board

Try connecting a lamp (correct voltage, etc) directly to the transformer. Most likely, the wire from the transformer to your lights is broken... The reset button can't reset anything, if there's nothing wrong there.

How do I remove the integrated door af a lamona hja 8630

could be a water inlet valve. Turn off water supply....disconnect hose at dishwasher....turn water supply on slightly to ensure water supply and hose are ok. If you have water there , problem could be water inlett valve or perhaps a sticky float valve.

Where will I find the thermal fuse ?

The cord you refer to is part of the door spring assembly, you need to take off the bottom panel and repair or replace the door spring or cable.

most likely the door switch is faulty or the child lock button is pressed. Press Cancel to see if anything happens Otherwise you have to test why the door is not latching properly.

we have a howdens dishwasher model number hja8630, which is full of water which hasnt drained . i have ladled it out checked filters are unblocked but it still fails to start. it does a click click sound and then nothing . only 18 months old and only ever used twice a week