The fix is in...!! First, I must thank "MD" for allowing me to catch a glaring error...I, too, have a "7188", rather than a "3788"...I copied the number off the manual facing page, rather than off the dryer. My humblest apologies to anyone confused. As it turns out, they're almost exactly the same, so no harm done. Back to the "fix"... I ordered a thermistor: the one that resides within the blower housing, accessable from the back side, and difficult to install without removing the drum (but not impossible). I've now replaced most everything but the motor, gas valve (they all test fine!), the drum and the housing. The problem lingered on. At others' suggestion, I disconnected all venting to remove back-pressure possibilities, cleaned it out totally (it was, already; and... my 'fat-old-wife' doesn't use fabric softener, either)...still no change! So, there was but one final part that needed to be replaced...and a trip to Sears completed that!!! Yes, a new Whirlpool with extended warranty has allowed me to move the two-year-old L.G. "POS" into the garage 'for further movement to a donation center near me'. No more "black hole" for my money! No more frustrations. No more L.G...! The Sears guy mentioned problems with L.G., and said their people DO have testing parameters and methodologies to allow them to locate the problem and fix it...without my having to pay for replacement parts that aren't needed. Unfortunately, I didn't have an 'extended warranty' through them for the L.G. Bottom line: it'll become someone else's challenge, no doubt more capable and knowledgeable than I. I hope my experience is of help to someone else in a similar situation, and that other's suggestions have allowed them to fix their unit. As for me, the new dryer I bought probably was cheaper in the long run than having the repair guy keep throwing good parts after good, at my expense. Thanks, all!! "The Mad Scientist" (well, not as mad as I once was!)