I had one that had the icky musty smell and what worked for me was this, first I put in a nylon about 6 or 8 charcoal chunks that you use for the BBQ grill and left them in there with the lid down for 7 days. Took them out then put in a dish with vanilla in it for 3-5 days and if it was a dry sunny day stuck it outside in the sun with the lid open. Smell went away and have never had it again. I did the charcoal trick with a water damaged grandfather's clock & vanilla too. You would never know the clock was in a flood!! Good luck. Hope this helps.