After approximately 6 months of non use my printer has got progressively worse from intermittent refusal to manual level to the current state where auto home results in the extruder being approx. 50mm off the bed, whilst stating z=5mm, and auto level stating it has finished even though it clearly hadn’t started.
I have included a video showing what happens when the printer is switched on and levelling attempted. Please note video runs double speed to reduce file size / boredom. Any trouble shooting / resolution suggestions would be welcome.
Thanks.