Fab - thanks for the recommendation. The Spin Doctor was great. after a three min diagnostic conversation it turns out the circuit board is the problem and basically I need a new machine. His advice was freely given, he was very knowledgeable, it cost me nothing other than a phone call and 3 mins of my time. I will definitely be using Spin Doctor again.
I will not be using Respond Services (recommended by John Lewis) who have been totally and utterly useless at every lengthy stage of me trying to organise an appointment and pay a deposit.
I’ve taken a screen shot of The Spin Doctor’s web page - see below