We may have found other answers which could help you.
Click here for Key Problem LockingHow can I mend the broken cord on my velux skylight?
Remove cover plate on patio door?
Velux skylight?
Velux KEM 140 skylight elec. opener only workd intermittent?
Identification of Rollexa Garage Rolle- door Motor?
Hinge creaks on compositie exterior door?