Resurrecting this old thread just to pass along a huge kudos to Mr. Oak Norton and Four Seasons Survival. One of my backup Spark Lites developed the same whitish-looking powder as the OP and the wheel failed to turn at all, in any direction (it is completely frozen stiff). This was a Spark Lite I had purchased about four or five years ago and has hardly been used. A quick e-mail to Mr. Norton and he has a replacement being sent out ASAP. Amazing customer service and a company willing to stand behind their products 110%.