Product review (5 stars): Amazon saved the day
A service guy came to the house to fix our dryer and determined that this module had failed.  He told my wife that these were unavailable, had to be special ordered from Korea, and would take several weeks.  I googled the part number and it came up on Amazon.  Prime, no less.  I ordered it and it was delivered later the same day (for free).  Took 5 minutes to replace and the dryer is working again.  Not sure if the service guy was just mistaken or if he had an agenda, and I felt bad because he only charged a $25 diagnostic fee, but we couldn't be without clean clothes for a month.