While you wait for answers, we may have found some information which could help you.
Click here for Window Will Not CloseScissor Lift?
Where can I purchase a new Velux Scissor Operator for my Velux Skylight? ?
bypass microswitch on Velux KEM-140B?
How can I mend the broken cord on my velux skylight?
Where can I purchase Velux Kem-140 motors?
Velux KEM 140 skylight elec. opener only workd intermittent?