Whether you do have a Harbor Breeze ceiling fan, or a fan from another manufacturer, it’s possible that your fan may be making clicking noises. It’s possible that the fan may make these noises on any speed setting, or even just particular speed settings.
Many site visitors immediately think it’s a problem with the motor – which is actually not the case. If you have a problem with the motor, you may see symptoms like the fan not turning properly. Loud clicking noises can be the result of a loose blade, loose screw or another component that is generating the noise when friction is applied (when the fan turns). Check for loose blades. Take a look for the screws, or set screws that hold the blades onto the blade arms. Are they all secured well?
Try wiggling blades to find which blade is loose. Once you have found a loose blade, check all the screws and mounting components attached to that blade to find the source of the problem.