Question about Lasko 3440 Wind Tunnel Floor / Box Fan

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How To Clean

Cant figure out how to open this up to clean the blades

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  • pltt19 Oct 14, 2008

    can't open to clean the baldes!

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On the back of the fan there are 6 recessed phillips head screws around the circumfrence of the fan. You must use a longer screwdriver as the screws are set in a couple of inches.

The two screws on the bottom are a little harder to see.

There are also two clips on the sides front cover. Squeeze on the sides gently to release these.

Posted on Mar 27, 2009

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If this one is like mine (and it looks just like it except my Lasko doesn't have the wood grain on the front) there is no filter inside. It is just a fan inside a plastic case.

If you want to clean it, you can try blowing it out with compressed air if you have a powerful enough compressor. If you really want to clean it, you will have to take it apart and that isn't as simple as it sounds if your unit is just like mine.

There are a bunch of screws on the back, which isn't too bad except one of them is a triangle headed "security screw" that is probably there to keep you from taking it apart. I looked at several stores and couldn't find a screwdriver to fit the stupid thing. So what I did was that I took out the rest of the screws, pried the case open as far as I could with my hands and cut the support that the last screw was attached to from inside with a strong pair of wire cutters.

I figured that when I put it back together, I wouldn't miss that one screw and I wouldn't want to deal with a triangle head screw every time I took it apart in the future anyway.

Once the case is apart, I found the best way to clean the blades is to remove the whole blade assembly and just wash the thing out in the tub and let it dry thoroughly before putting it back in. There's a metal brace (Held on by two screws) at the top the top spindle goes into and there's a single screw on the shaft of the motor that hold the bottom spindle in. It probably sounds more complicated than it is. It's pretty simple when you see it.

If you put it back together right, you almost can't do anything wrong. You might want to take a damp cloth and wipe down the interior of the case and the shrouds that surround the blades as well. If you've had it a while, they'll be dirty. You'll see/feel the dirt wherever it is. This thing is a pretty simple machine and is easy to clean once you figure it out. I put a few drops of oil on the top spindle when I put mine back together.

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slowly pry open the case, i did mine in the middle and work my way around the unit, but it a bit tricky..

the best way to clean the device is to use a air compressor, strong air blowing inside while holding the blade with a screw driver. and even using a paint brush with long bristle, while blowing, this way you dont have to take the device apart.

good luck

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