Wax does not melt until over 60 degrees Celsius! That is HOT, not warm! 40 Celsius is sufficient to filter through a 200 micron filter, as long as there is not a lot of suspended solids in the honey.
If this honey is crystallising, it will need to be heated sufficiently to liquidise it. That will be a particular temperature between 40 and 50 degrees. Pasteurisation takes place by heating the honey to around 85C for a very short duration.
I always warm the honey before filtering, if it is cold. Why? Because it won’t filter at a sensible rate, unless under pressure.