Hello and thank you all for your contributions, I apologise if my post has confused some of you with the way it has unfolded. I'm more used to reading the threads rather than posting one.
My original post was to enquire into the general opinions of those who buy kit such as this and whether or not they would expect a piece of equipment to fail so soon. Also to see if any one had similar experiences with equipment that had developed a fault early on and what service they had received or would expect from their supplier.
As with any one who may buy something new and have it become faulty, it's a disappointment. As with my older amp, still working well ten years on bless it, to buy a new one and have it fail so soon is a shame. No disrespect to Frank Harvey's, I do realise they didn't build the Amp.
Just to clarify though, for those who asked:
I first of all called Yamaha support line for advice on what might be causing the fault and that I had tried swapping speakers etc. A factory reset was advised and if that didn't cure it then it was the amp that had a problem.
I then called Frank Harvey's regarding the problem with the amp and was advised to return the amp to them so it could be sent off for repair, when I asked if that was the only option available the answer was yes. The person I spoke to was an employee of Frank Harvey's.
I will add that it wasn't David that I spoke to on the phone;
I will also add that this tiny thread, that has evolved quiet interestingly, should not in any way damage Frank Harvey's long standing excellent reputation.
It was good of David to actually contribute to the thread as he did.