Burning smell with any smoke fluid

The wick should just be touching the bottom of the heating element.  Also, when priming a new wick, you need to add at least 40 drops of smoke fluid.  Normal running needs at least 20 drops on refill.  This has been my experience running trains for 14 years.  You may be getting the burning odor from not using enough smoke fluid and burning the wick.

Thanks for the response but I have also used enough fluid that the smoke would be pumping out the sides and to the point that it not producing smoke at all due to the overload of fluid. To top it off when I open the unit back up the wick looks fine like it was just replaced oiled of corse but nothing charded.

I kind of like the smell.  Not that everyone should.

John

The smoke resistor should be FIRMLY in contact with the wick but not totally buried in it!  Also 10-15 drops isn't nearly enough for a totally dry wick, I usually end up priming a newly rebuilt smoke unit with a full dropper from the MegaSteam bottle and frequently another half dropper.

Ok off to the train room and repack and prime. Thanks for the tips