How do I remove candle wax off of a painted wall?

Scrape off as much as you can with something plastic like a credit card. Place brown paper over whats left. An iron set to medium and iron over the paper. Move the paper around. Use a blow dryer to soften the wax. Use a cloth to wipe it off. Go from the outside to the center or it will spread. Remove any residue with the iron.

What William said! He took the words right out of my mouth! Follow up with a short spritz of Windex (dry immediately) to remove any shine

Use your hair dryer and a clean cloth to remove the wax. If you have any oil residue try using warm water and baking soda to remove it.