First fuse (possibly No 10 - 7.5A) covers the movement of the mirrors (both glass and retraction)
Second fuse (possibly No 55 - 10A) cover the heating defogger elements in the mirror glass.
Thank you Eddie Honda. I am defeated!
The Jazz is my wife's car. It dates from August 2013 and 22,200 miles (could be kilometers?), driven by me (minimally) and my wife and lots of our daughter's carers. Donnelly Honda in Belfast say that the mirror was damaged and not covered by the guarantee.
I cannot find the interior fuse box. There seem to be four parameters here: power mirror heaters (I think so), folding door mirrors(yes), automatic air-con system (yes), auto-idle stop (no idea; not listed in the index to allow me to check). All not helped by the manual being unclear between the text and the graphics about which is the 'driver's side'.
Fuse 10 in my manual seem to be for heating, air conditioning (always assuming that this is the relevant manual for this Jazz). It does look from the manual that fuse 55 is the one. I will take it into Donnelly's and ask them to remove it (FOC) and go from there.