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No air circulation / flashing lights at start up. 850 1993

posted by  jaker on  Tue Sep 11 11:30 CST 2012
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last visit: Thu Oct 23 15:22 CST 2014
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ECC in '93 850 - Both recycle and A/C lights flashing at start up. - Blower is working but I only get air volume through defrost vents. All other vents whisper of air. Blower seems to work in all speeds and in Auto. I can hear recycle fan turn on with switch. Temperature does change with thermostat change. A/C has not been working for a while... another issue. Faults show 2-3-3 (floor defrost damper motor position sensor open circuit or shorted to 12 volts) and 3-2-3 (ventilation damper motor active too long). I checked all related fuses and they seemed fine. Can anyone tell me if this indicates that there is an electrical issue or that a damper motor has failed and perhaps needs replacing? How about relays or any other possibility to consider before I begin the search for a damper motor. Thanks for your suggestions.






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