There are some folks that would place a piece of wax paper over the wax, set the iron to steam and draw (attach) the wax to the wax paper. This can be very tricky… I prefer the following method:
Step #1: Lay a frozen bag of veggies or any bagged frozen item in your freezer right on top of the wax for 5 minutes:
Step #2: Using a dull butter knife – chip or pluck the wax out of the carpet. Start at the edge of the wax and move in.
If this doesn’t work… Perform Step #2 again but leave the frozen bag on the wax for 10 minutes this time.
With patience you will be able to remove the wax from the carpet.