Originally Posted by kerry

It warmed up yesterday and my blower started working. When it cools down again and the blower stops working my next diagnostic process is to get a heat gun and start blowing warm air on various component to see if I can find out which one is causing the problem. I'll try the amp first, then the blower itself, then the push button unit, then the servo. My hypothesis is that there is a poor or cracked connection somewhere and that contraction in cold weather is interrupting the flow of current.

Lance, how can you not have a cold engine blower cut off sensor? My 85TD without the servo has one.