Re: Recirculation motor is most likely broken on 2003 - Saab 9-5 Bulletin Board - Saabnet.com
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Re: Recirculation motor is most likely broken on 2003
Posted by dmz789qqq [Email] (more from dmz789qqq) on Thu, 28 Jun 2018 05:12:46
In Reply to: Re: Recirculation motor is most likely broken on 2003, bobc [Profile/Gallery]
, Wed, 27 Jun 2018 22:10:31
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Recirculation motor is totally different from other ACC motors. It is not a stepper motor but rather a plain DC motor that just runs into hard stops on both limits. As such there is no way for the ACC computer to detect broken gears and the defect just goes unnoticed by the owner (who intead complains about poor AC perfomance). By the way, hitting the hard stops puts a lot of stress on the gears inside and eventually breaks them.
The definitive step is to remove the glove box and watch/feel the the motor actuator arm. The non so definitive test is to observe the change in airflow speed when switching reciculation on/off at max fan speed with all doors and windows closed - but it is hard to know what to expect in this case.
posted by 24.63.1...
Posts in this Thread:
- Cabin Filter Observations, Joe , Sun, 24 Jun 2018 16:13:31
- Update, Joe , Sat, 30 Jun 2018 04:52:461
- Re: Cabin Filter Observations, Gene N , Mon, 25 Jun 2018 12:05:06
- Recirculation motor is most likely broken on 2003, dmz789qqq, Tue, 26 Jun 2018 10:07:15
- But, will it stay in Recirc mode?, Boris Bubbanov, Mon, 25 Jun 2018 13:07:52
- Re: Cabin Filter Observations, Joe , Mon, 25 Jun 2018 12:35:09
- If I could 10 degree cooler air by removing the filter ..., bobc , Mon, 25 Jun 2018 07:46:11
- Re: Cabin Filter Observations, Boris Bubbanov, Sun, 24 Jun 2018 20:55:37
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