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Velux skylights that no longer open. operated by pull cords normally. how can i fix them?
I have 2 Velux skylights/windows that operate on a pull cord system (one pulls them open and the other pulls them shut by operating the catch). They are operated like this as they are in double height rooms and out of reach by hand.
Whereas I used to be able to open them (admittedly with some forcefully pulling) they now appear to be stuck fast and I am nervous about pulling too hard.
what can I do to firstly open them, and make sure that they don't keep sticking and are easier to open in the future?
You will need to get on a ladder to get a closer look at the problem.The closing mechanism might need greasing or it can be the case of the cords sliding off the wheels inside the mechanism and getting stuck between the pulleys (or they could have even formed a knot inside if they were not fitted properly or have tangled in time). I do not recommend pulling any more as this can lead to further problems! Grease can be applied inside the locking mechanisms and on the hinges to prevent seizure (or you can use an anti-seizure spray but this does not have a long-term effect). If opening the mechanism take note of the position of any springs and bolts inside and make sure all moving parts are free of dust and can perform the hole moving circle as intended, its usually pretty easy to realise how they are suppose to move and why.
Answered 30th Aug 2012