Question about 1992 Subaru Loyale

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Climate control switch broken

The control is stuck on the heater position, meaning pressing the other buttons (BILEV, windshield, A/C) doesn't switch the air direction. I believe this switch works by compressed air so I may have a leak. What is required to fix this?

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Check all the vaccumn lines that might go to the location of the switch. You can pull them off, depending on where they are at.But be careful to notice where you took them off from. and close one side with your finger and blow through the other side.If any air is leaking you have found your problem. If not , it may be the valve itself.

Posted on Dec 15, 2008

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When my car turn on start switch...eng running. I don't turn on a/c switch but compressor pully and clutch are running together Is it ok or problems? Car is BMW e90. 323i 2010 year Thank you


Is the heater control in the defrost position? Most cars will automatically turn the air conditioning compressor on when defrost is selected to dehumidify the air being directed on the windshield. This keeps the windshield from fogging up, and helps defog the windshield more quickly if it is already fogged up.

Dec 10, 2016 | BMW 323i Cars & Trucks

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I have a 2003 Ford F-150 FX4 5.4 and the AC only blows out of the defrost and help


Dustin, Sound like vacuum loss to position switch. Defrost is the default position when vacuum is lost in vent control system. Check any and all vacuum lines and connections under hood first, especially any that run through firewall. Check the attached links,instruction and guides, Good luck
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Apr 13, 2016 | Ford Cars & Trucks

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How do I get the windshield & the windows defrosted? What buttons do I press?


Does your heater fan turn on? If not, could be a fuse, could be fan motor, could be wiring connections. If heater fan works then defroster switch may be the problem, or connections to the switch, or again a fuse. Temperature controls may have some effect. Usually, defrost needs heat to work well. The engine needs to warm up.

Feb 13, 2015 | Cars & Trucks

1 Answer

1998 dodge intrepid auto climate control. My heater will not turn off, and the fan is stuck on high, and also stuck on the cold temp. I replaced the climate control module and checked all the wiring....


the fan speed control not adjusting usually means the 'resister' is no longer working. Stuck on cold means the 'blend door actuator' is no longer functioning.

Dec 10, 2013 | 1998 Dodge Caravan

1 Answer

Heat


Could be a problem with a blend door under the dash.
The blend doors are controlled by vac or electric motors and direct air thru the heater core and the vents.
Defrost is the default position when the HVAC system is not working.

Dec 14, 2012 | 2003 Ford F350 Super Duty DRW SuperCab

1 Answer

1999 durango vent control switch will not let AC blow threw vents only defrost


Usually this is a problem with the blend doors under the dash. You either have a vac leak, a dead motor, or a faulty door.
The control opens and closes the doors to direct air thru the heater core and evaporator core along with directing air thru the vents.
When a problem occurs, the default position is the defrost vents to make sure the windshield remains clear.
You can do an internet search for "repair durango blend door" for more info.

Jul 29, 2012 | 1999 Dodge Durango

2 Answers

A/C will only blow through defrost vents


Common question on this site. On late model cars, the vents are controlled by blend door motors. Small electric motors open and close doors to direct air flow.
Chances are you have a blend door that is stuck or a failed motor.
The default position is the defrost to make sure the windshield is always clear.
Someone will need to look behind the dash to see if all of the doors will move on demand.

Jun 27, 2012 | 2006 Acura TSX

1 Answer

Heater switch replacment


Hello! it's my job to make things as easy for the customer as possible...Therefore I must ask why you want to replace the heater switch? Is it because you have lost one or two of the switch speeds? Your vehicle is noted for loss of the Blower Motor Resistor...
Changing the Heater switch means removal of the Climate Control Assembly which is not the easiest of jobs...I've included the process...But are you sure the blower resistor is OK? If you have lost 1,2, or all blower motor speeds it's more than likely the Resistor pack. And a lot easier to change...
Guru...saailer


Remove climate control:





12_26_2011_2_15_09_am.gif
  1. Remove the instrument cluster finish panel...
  1. Remove the 3 climate control assembly screws...
  1. Disconnect the climate control assembly vacuum connector...
  1. Disconnect the 5 climate control assembly electrical connectors...
  1. Remove the climate control assembly..
Removal of blower motor Switch:
  1. Remove the climate control assembly.
  1. Remove the blower motor switch knob.
  1. Remove the blower motor switch.
    1. Remove the screw.
    1. Remove the blower motor switch.

Removal of blower motor Resistor:


12_26_2011_2_22_49_am.gif
Blower Resistor is under the battery tray...

MOTORCRAFT Part # YH1698 ...cost $25

12_26_2011_2_28_50_am.jpg

Guru...saailer

Dec 22, 2011 | 2007 Ford Econoline

1 Answer

My ac was working fine then one day it stopped and now only hot air blows out the mechanic said the ac is fine and works good but there is a vent door that switches the ac to heater and he said it was...


There is a blender that controls the air flow to go through the heater core for heat, and the evaporator for AC. It very well could be stuck.

You maybe able to try and get it to get unstuck by running the cars AC and switching from heat to AC back and forth and see if it gets unstuck. Just turn it on full blast and go from heat to cool.

If that fails, then you may need to service it. There should be a Lever Marked VENT under the dash, usually by the Brake and other pedals on the Driver's Side. Close the VENT and that will stop the Air from coming in and leave the A/C Blowing through the outlets(Vents).

I also read this online if you have an electronic climate control. "On climate control press off and heat button and let go quickly. Then press automatic. The display will start rotating eventually displaying a code 025,125 , 024 etc. Then press defrost to stop. You may hear blend door operating atb that time. It worked for my climate control."

Jun 11, 2011 | 1996 Lincoln Town Car

1 Answer

I have a 1991 camaro.The air or heat doesn't come out through the front vent when switch to vent control.It only come out through the dashboard to defrost the windshield..I have bought and install a...


It is the vent control. It is located on the passenger side behind the dash. It is vacuum controlled. It can fail and not let you change the vent positions.

Good Luck!

May 09, 2011 | Chevrolet Camaro Cars & Trucks

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