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No matter what you do, you can’t get your WEN Rotary to turn on.

Before you try anything else make sure that the device is properly plugged into a working electrical socket.

See guide for replacement.

This is the last resource, this happens when the stater wires are not making contact with its connector, to fix this issue a dis-assembly will be required in order to make the connections work.

While trying to move the speed adjuster the speed of the rotary tool doesn’t seem to change.

Maybe the change in speed of rotation is not being perceived by you but it is working properly!

This might mean the dial is not well adjusted. See guide.

Doesn’t matter how tight you try to put the bits/ends they fall off

The end connector piece, the collet nut, may wear out and no longer hold in bits. See guide for replacement.

Maybe the bit you’re trying to use is worn out or it’s too small for this Rotary Tool, be sure it is tighten well.

The bit is rotating too slowly, its not supposed to work that way!

This might mean that something is limiting the power to the motor. You may need to disassemble the device in order to see if everything is correctly assembled. See guide for replacement.

Make sure that the speed setup is in a higher setting if the tool is not rotating fast enough.

After using the device it is way too hot!

This device is not meant to be used for extended periods of time. Make sure to occasionally pause during use in order to reduce temperature.

This might mean something is drawing too much power inside the tool, like a short circuit or something similar. Try a different outlet.

The fan may not be functioning properly making your device over heat. See guide for replacement.