We may have found other answers which could help you.
Click here for Door Unlock HelpVelux KEM 140 skylight elec. opener only workd intermittent?
Hinge creaks on compositie exterior door?
Can you open a double glazed upvc window?
Velux skylight?
How can I fix my kacher window vac?
Identification of Rollexa Garage Rolle- door Motor?