hello everyone.

For the past few weeks, I have been experiencing inconsistent blower motor operation. No matter what button I pushed on the a.c.c., I would get no response for the first 5-10 minutes of driving. Once it kicked in, though, everything worked as it should.

Yesterday and today, however, the blower motor never kicked in. This, of course, is a huge problem because it's freezing cold outside. I have no idea how to diagnose this one. Let me tell you what I'm working with, and hopefully someone can tell me where to start.

1983 tdt wagon:
-new mono valve
-newer blower motor ( replaced within the past two years)
-a/c does not work---the compressor has been removed
-pushbutton unit seems to work, as it always makes a "shhhh"
noise whenever i switch buttons

Is there some sort of relay that controls when the blower motor engages? Would the aux. water pump do this if it quit working? Any help would be great.

Thanks to all for your time.

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1984 300TD Wagon--Astral Silver--Retired
1983 300TD Wagon--Dark Blue--Retired