Use ice cubes to freeze and pick out what you are able to. Then take a brown paper bag put over the spots and use an iron on top, the paper bag should absorb the wax. Keep moving bag to a clean section until wax is gone. Try this in a place not easily seen before you try it everywhere!

Red

Be really, really careful with irons and carpeting, most are synthetics which melt easily. Make sure to use the recommended setting for your carpet's material.

I would also try a degreaser, denatured alcohol or mineral spirits. (Test an inconspicuous area of your carpet first for colorfastness.)

shampooing is the best solution for cleaning wax from the carpet ..

Be careful not to let the iron touch the carpet as it may scorch the fibers. If wax residue still remains, use a dab of dry-cleaning solvent and blot to remove. Be careful to use only a small amount so it does not damage the carpet backing.