This has recently happened to me but have not had the time to dedicate to it over the last couple of weeks.
Do the soft top up/down lights flash if there is a problem i.e luggage cover not correctly positioned or the mircro switch u/s also knackered motor?
My situation could been caused by several reasons,
1. jam packed boot. (only just room to lower luggage cover) poss knacker Micro switch.
2. As I was about to drive through Glen Coe on a frosty but clear and beautiful morn, I hadn't thought about the fact the roof may be frozen shut thus hopefully resulting in a blown the fuse. Same scenario though...flashing red, then ignition off. Checked luggage cover position, flashed her back up and nowt
3. Motor u/s. hope it isn't this as there was a new motor fitted last April and I kept telling myself to clean out the drains but never got round to it
I am going to sort it one way or another this weekend.
I know everyone hates this but, I have been searching the forum on and off since this happened to find out where the fuse box is kept and also where the drain cleaning guide is any pointers or links would be greatly received.
I do struggle with forums.