2002 Saab 9-3 defroster problem

Asked by Feb 14, 2016 at 09:35 PM about the 2002 Saab 9-3 SE Convertible

Question type: Maintenance & Repair

When it's below zero outside, my 2002 Saab 9-3
Convertible blows cold air (feels like air
conditioning air, not outside air) for about 40
minutes from the defroster only.  Vent and feet air
blows hot.  As soon as you put it back on
defroster, it immiately blows cold air.  After about
15 minutes, it blows warm air for about 5 seconds,
them back to cold.  It may do this every minute for
about 4 or 5 times before it blows hot air
constantly.   I'm thinking it may be a  bad relay
switch, but not sure which one it may be.  
Dealership is confused because by the time I get
there, it's working fine.  Me too!

1 Answer


Get someone to check you thermostat. RJJ

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