So I managed to get the machine out and took it apart (all unnecessarily because the pump is accessible from the back but nevermind) it was full of water, so much so it came out in a puddle when I lifted it to get to some screws. Had a look and couldn’t see anything obviously broken. Reconnected all of the electricals and got as much of the water out as I could.
Started the machine up after reassembling and it ran for a few minutes before erroring again but after restarting I could hear the pump kick in and water going up to the tray, been fine since.
Is there a trusted site to purchase spares from as I suspect the pump is on its way out and may need replacing soon