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Familiar with ACC heater box operation?
Posted by SeeVTSaab [Email] (more from SeeVTSaab) on Sun, 7 Sep 2014 15:07:14
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05 9-3SS Arc, ACC. Pretty weak defrost operation. Good airflow all other positions. Looking at the motors attached to the heat box, I've seen all the motors attached to the passenger side operate at various settings.
On the drivers side of the box, after pulling the fascia (what fun pulling the vents), the lower motor on the drivers side, (red lever attached), adjusts the temperature level on the driver side, of it is set higher or lower than passenger side.
The top motor attached doesn't ever operate (blue lever attached). Any guess what it does?
I get weak defrost flow, mainly it seems to flow from the center of the defrost vend left & right, I can't feel anything from the edges.
One diagram I've seen says the top motor is 'defrost motor' but it also show 3 motors on drivers side of heaterbox and I've only got two.
Any knowledge to share>
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