I have an AAA5+ (Avondale modified Arcam Alpha 5+) too, and it sounds great. Ive had the tray loading go wrong twice, sadly. These units are getting on a bit and this seems to be their fate.
The first time, the whole unit was swapped by Avondale Audio (free of charge, I might add, even though it was a second hand unit that I hadnt even bought directly from them!).
The second time, as like you I don't live close to Chesterfield, I got a replacement Philips CDM 9 tray gear from eBay for a tenner and did it myself. I can email instructions to you if you want to explore this route.