This video is for my 2003 Ford Econoline E250 cargo van. I went to adjust the blower switch the other day and nothing happened. Come to find out it only worked on the high setting........Sooooo.....I looked through Youtube and came across a few videos and they all said the same thing...it's most likely the blower motor resistor. So I decided to film myself fixing it and letting you know that the parts I purchased did indeed fix the problem!! I only spent around $35 dollars for everything. I got the parts at my local Advance Auto parts store.

The parts are

Blower Motor resistor RU1138
Electrical connector PT766


I hope this helps you out. Based on the videos I've seen, this is a common Ford issue and I'm sure it happens to many other Ford models.