One member here who has been having an issue with smoke smell from his Ashford had contacted me back-channel with a question about something I said on the forum. It just so happened that I had loaded my stove right before getting his message, and as I was answering him, I started to smell smoke from the stove in my office. This never happens, so I went to investigate.
I went to bypass, opened the loading door, and found a little whisp of wood (a toothpick sized splinter) sitting on the little ledge in the casting under the door frame. This is outside the stove, about an inch below the lower door gasket, but hidden behind the decorative casting on the door. I brushed off the sill, closed the door, and the smell cleared. It reminded me that this has happened a few times, from bits of wood debris on that lip or even on the ash pan drawer lip, so I mentioned it to him.
He made the same inspection, and found that he had a few small bits of smouldering wood debris also sitting on this little lip under the door, which he cleaned off. His smoke smell went away, at least for the night. Of course, it was colder than usual, so it's too early to call success. But, it might be one more thing to ask, the next time someone is having a smoke smell, it was definitely the cause in the case of my own stove. If I hadn't been running several years without experiencing this issue, I might have been in a bit of a panic.