Product review (5 stars): I determined it was bad heating element that was the culprit
My one year old dryer stopped blowing hot air. So after doing diagnosis with multimeter, as shown all over the net, I determined it was bad heating element that was the culprit.  After searching around, Amazon had the lowest price and with standard shipping, the heating element was delivered in a week.  I just installed it, and dryer is giving off hot air again!  The old heating element was scorched black and wire is broken so there was no electricity going through it.  Hopefully this will hold up more than a year.  It looks like Whirlpool warranties their products for one year, and wouldn't you know it, element just broke at 14th month!