Product review (5 stars): $69 later he very nicely informs me that the heat relay was bad but ...
I have a 2003 kenmore model 110.73942101  whose heating element stopped working on Christmas Eve. After a trip to the laundromat contacted a Sears repairman to fix the problem. $69 later  he very nicely informs me that the heat relay was bad but he could fix it for $350.  Of course with that sum that was a no go and I was all set to buy a new dryer.  But  we asked him how much the part would cost  and he said about $70.  I thought that was a huge mark up for  labor.  Little did I know how much of a mark up  when I found  the part on Amazon for actually 9.99.  I also found a video on how to do it  and that it should take no more than  a few minutes  of  doing it.  I'm not remotely a DIY  and even I found it easy to do.  I've run a couple loads of laundry and so far so good.  There's heat again  and clothes are dry.