[wrxnofx]

Dave,

I know this topic has been covered many times, so use the search to help learn more.

With that being said you have the same system as I do with the knob only and no red handles. This system is called autoheat.

To test, you don't have to start the engine. Simply turn the key to position 2. You can then turn the autoheat knob to the highest number, which is 10 I think. In doing so, the engine blower fan should come on (it bypasses the cabin sensor if memory serves) and the flappers should close.

If the blower doesn't come on, then the problem could be within the autoheat box between the seats (there is a rod that comes detached which could be one problem, or the circuit board could be fried). The problem could also be the relay in the fuse box in the engine compartment. The problem could also be the blower itself.

A prerequisite to the footwell blowers in the cabin by your feet turning on is that the engine blower fan must turn on. If you eventually get the blower fan to turn on but not the footwell blowers, then check the inline 10AMP fuse that is located near each blower to see if those are blown. There is a way to bypass the engine blower by bridging something in the relay back there, but you'd have to search for this (people do this when they backdate the heat in the car and remove the engine blower, letting the footwell blowers provide sufficient air movement to the cabin).

If your cabin is always warm, it could be that the flappers are stuck closed, thereby letting the heat be directed through the plumbing into the cabin regardless of whether the autoheat is turned off. None of my blowers turn on when I turn on my autoheat and I haven't had a chance to figure it out yet. But when I do turn it on I get just a pinch of heat eeking out of the vents, making me think that my flappers at least close and open properly.