Territory massage seat failure

I have a Territory as well and I had a similar problem with my massage chair a while ago. Does the error memory give you more detail on what the error is?

It just says something like 'Massage seat switch - electrical fault'. Any idea what that means?

That sounds very much like the issue I experienced. In my case, it turned out to be a defective cable or plug connection. I would suggest taking it to a workshop. Cost me 95€ to resolve.

Thanks for the info. I took it to the workshop, and it was indeed the cable connection. All sorted now!