Hello Alexa. Good questions. Restarted the fridge last night, and now some 24 hours later the fridge has managed to get itself down to 5.9 degrees celsius. This is better than it has been in a long time. Setting is between 3 and 4, motor seems to be running continuously as before, but it is warm here at the moment. The freezer is fine (but it always was).
Think I’ll monitor it for a while and see how stable it stays. What should a good fridge temperature be? Many thanks indeed for your help.