fixing a venetian blind puller

Ive got a venetian blind (wooden horizontal pieces) and its permenantly shut. The two pullers that allow me to rotate the blind/curtain open and closed are jammed and locked - somewhere in the round pulley up top I guess.
Can I fix this easily?
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Take the whole thing down from the wall or window and place it face down on the floor. Often, the housing at the top is open at the back and you can see inner mechanism.
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It can be fixed.
From your description (The two pullers ) I am assuming you have a cord tilt blind and not a wand tilt blind. Do you know the brand name. I ask because Levelor sent out a lot of blinds with weak, if not defective, mechanisms. If that is the case the entire assembly will need to be replaced. Not that hard, but you will need parts and guidance.
If you are the original purchaser of a name brand blind, the dealer can get it repaired by the factory for FREE.
The advice to take it down and look into the headrail was good advice. You will be able to see what the problem is with most blinds on the market.
Post more info.
Colbyt
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thanks guys, i am in australia so i dont think its that brand.
it is a cord puller type, not a wand type, the "pulling up" thing works, just cant rotate the blinds, yeah seems stuck in the pulley up top...
Had a look on a chair in there though, couldnt see much except the rope and the pulley!

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It might be nothing more than the cord becoming frayed from wear and forming a lump at that point. It's common in Australia because gravitational forces are so different on that continent. This is why kangaroos have to jump - to overcome that force. In any case, if that's what you find, you'll have to replace the cord.
Or, if you're lucky, the cord may have simply slipped off the pulley and gotten wedged alongside it.

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The most likely cause is a kinked or wedged cord. The levelor product that I mentioned used a spot welded pulley made of thin metal as compared to a cast pulley. It tended to spread with use and allow the normally looped and stacked cords to wedge side by side. Take it down and look at the mechanism. You will likely be able to fix it. It is just a pulley with a cord wrapped around it that turns a gear that rotates the metal shaft that runs from one side of the blind to the other. If you can't fix the old one the part is replaceable. Will help you with details on how to do that if you need to and can find the part.
BTW, I enjoyed your New Years fireworks displayed with my breakfast on the eve of here in the states.
Colbyt
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