While you wait for answers, we may have found some information which could help you.
Success
Message
Velux window does close but does not lock?
Where can I purchase a new Velux Scissor Operator for my Velux Skylight? ?
Where can I purchase Velux Kem-140 motors?
My VELUX remote won't work - how can I repair it?
Scissor Lift?
Stuck (open) Velux window?
How can I mend the broken cord on my velux skylight?
bypass microswitch on Velux KEM-140B?
Velux skylight?
Where can I Purchase a Velux Kem-140 Skylight motor?
Replacement wooden beads on velux windows?
Velux KEM 140 skylight elec. opener only workd intermittent?