My scooter alarm keeps going off - it's not even switched on! ...
 

...What to do? don't even know where the alarm is fitted

you need to be more specific. what kind of scooter is it. what year?

If it's in the morning or when it rains moisture is getting into the alarm and triggering it that happened to me had to get a new installed and made sure it was moisture proof, so embarrsing running out at 5;30 a.m. to shut it off finally just disconnected the fuse overnight, until I got it fixed. We had a Cadillac years ago and the horn whould start to go off same stupid problem. Maybe park in an area where it's gets sun all the time. Hope this helps Pearl