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07 holden calais V V8 I'm having a intermittent air conditioning problem where once the car is turned off completely the ac fan continues to be engaged blowing air consistently Also when this is happening and if driving the fan speed which is controlled in the car shows on the screen if I am turning it up and down but the speed of the air coming out of the vents doesn't change

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  • Cars & Trucks Master
  • 40,691 Answers

Check the control module for the ac as it appears faulty.

Posted on Feb 09, 2014

6 Suggested Answers

6ya6ya
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Posted on Jan 02, 2017

  • 169 Answers

SOURCE: 1993 GMC Suburban K1500 Air Condition Fan and vent choice problem

MIKE.
#1) YOU PROBEBLY HAVE A BAD BLOWER MOTOR OR POSS. A BURNT CONNECTION @ THE MOTOR. IF THE FAN WORKS ON ALL SPEEDS EVEN INTERMITTENTLY. THEN THE BLOWER RESISTOR IS OK WICH CONTROLLS THE VOLTAGE TO THE MOTOR TO GET THE DIFFERENT SPEEDS. WHEN THE RESISTOR BURNS OUT THE FAN JUST WON'T WORK ON CERTAIN SPEEDS. THE "RELAY" IS ONLY USED FOR HI-SPEED FAN USE. TRY HITTING THE MOTOR WHEN YOU GET IT NOT TO WORK AND IF IT STARTS THN YOU HAVE A BAD MOTOR.

#2) THE NOISE YOU HEAR WHEN TURNING THE IGN. ON AND OFF IS PROBABLY THE DEFROST DOOR CONTROLL ACTUATOR/MOTOR WICH HAS A POTENTIOMETER IN IT THAT TELLS IT WHEN TO STOP MOVING AS IT REACHES THE CORRECT POSITION. WHEN YOU TURN THE KEY OFF IT BY FEDERAL LAW HAS TO RETURN TO THE DEFROST POSITION IN CASE OF FAILURE. THE LITTLE SPLINES IN THE MOTOR OR ON THE SHAFT CAN GET STRIPPED WHEN THIS HAPPENS. TRY DUPLICATING THE NOISE BY SELECTING THE DEFROST ON AND OFF WITH THE KEY ON.
I WILL CHECK FOR YOUR FEEDBACK LATER

Posted on Aug 22, 2008

diths_kri
  • 67 Answers

SOURCE: Blower for AC/Heater stopped working

hi

my heater blower has stopped working all together i have checked all the fuses but do not no where the relays are for the heater.

Posted on Jan 02, 2009

  • 1 Answer

SOURCE: 1997 Audi A4 2.6- heater blower working

check if you can here the fan running. If not the cause can be that the bushes have reached there limit and need to be replaced. If you have the time and tools, you can remove the motor and get to the bushes. You will find that they have been worn down to a curn shape. If you remove each bush, and flip it 180 degrees, then the tip of the bush will make contact with the motor shaft. This will give you many months of fan life and save you a packet. You could also replace the buses with new ones - Audi do not sell them but can be matched by good auto shops.

Posted on May 08, 2009

haider_alhar
  • 90 Answers

SOURCE: heater control stuck blowinf hot air out vents

did you cheked if there is enough refrigrant ( freon ) in your tubes by measuring the pressure . if there is you may need to check your condensor its may be clogged and not letting enough air comes through to cool the refrigran

Posted on Jun 01, 2009

co7196
  • 3433 Answers

SOURCE: the air conditioning compressor will not engage

did you reseet the vent positions?. It could happen but its a long shot the system has lost its charge and the safety switch is keeping the compressor from running, or the safety sw itself is bad.

Posted on Jul 19, 2009

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