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 Post subject: Cosmo knob question?
PostPosted: Tue May 22, 2012 6:39 pm 
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Joined: Sun Dec 27, 2009 8:03 pm
Posts: 331
Location: Tucsan AZ / Davis-Monthan AFB / St.Croix Virgin Islands
Sup guys, I have looked high & low trying to figure out something on my Cosmo.
What does this knob do man?


http://youtu.be/y0kyKejNgGs?hd=1

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 Post subject: Re: Cosmo knob question?
PostPosted: Tue May 22, 2012 7:28 pm 

Joined: Tue Sep 27, 2011 4:15 am
Posts: 323
Location: Adelaide
Dash light dimmer control? turn your lights on and try it. :wink:


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 Post subject: Re: Cosmo knob question?
PostPosted: Tue May 22, 2012 7:37 pm 
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Joined: Sun Dec 27, 2009 8:03 pm
Posts: 331
Location: Tucsan AZ / Davis-Monthan AFB / St.Croix Virgin Islands
beans161 wrote:
Dash light dimmer control? turn your lights on and try it. :wink:


Nope it's not that knob is to the left.. I know because my dimmer knob works.

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 Post subject: Re: Cosmo knob question?
PostPosted: Tue May 22, 2012 9:03 pm 

Joined: Sat Aug 06, 2011 5:11 am
Posts: 106
Location: Adelaide, Australia
I havnt got knob like this in mine i thought that it dash dimmer but u have another one for it so i can recommend to try to look under dash and figure out where its going and try to understand is it original or aftermarket.


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 Post subject: Re: Cosmo knob question?
PostPosted: Tue May 22, 2012 9:28 pm 
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Joined: Sun Dec 27, 2009 8:03 pm
Posts: 331
Location: Tucsan AZ / Davis-Monthan AFB / St.Croix Virgin Islands
Chuxa wrote:
I havnt got knob like this in mine i thought that it dash dimmer but u have another one for it so i can recommend to try to look under dash and figure out where its going and try to understand is it original or aftermarket.


You know I have never looked behind the knob. Yes the knob is stock, also the car is a California car so I don't know if that means anything

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 Post subject: Re: Cosmo knob question?
PostPosted: Wed May 23, 2012 7:42 am 

Joined: Sun Jun 01, 2008 9:13 am
Posts: 70
Location: Vancouver Canada
Its you air conditioning cool to cold control,i have a identical knob in my Rx4 in witch a/c works great !
Counterclock wise cool - Clock wise cold.
Cheers

J

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 Post subject: Re: Cosmo knob question?
PostPosted: Wed May 23, 2012 6:35 pm 
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Joined: Sun Dec 27, 2009 8:03 pm
Posts: 331
Location: Tucsan AZ / Davis-Monthan AFB / St.Croix Virgin Islands
la23srx4 wrote:
Its you air conditioning cool to cold control,i have a identical knob in my Rx4 in witch a/c works great !
Counterclock wise cool - Clock wise cold.
Cheers

J


I was thinking of this also. But for some reason my AC does not work and I'm going to hot ass Arizona.

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 Post subject: Re: Cosmo knob question?
PostPosted: Wed May 23, 2012 9:14 pm 
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Joined: Mon Mar 15, 2010 4:37 am
Posts: 177
Location: Ballarat
Yep, definitely AC thermostat control. The thermostat has a capillary tube that is positioned
either inside the evaporator coil or in front of it. Once the set temperature is reached the thermostat
cuts power to the AC pump until the temperature rises again and reactivates the pump.

If your AC isn't working, check fuses to internal blower fan. Generally accessory power is taken from
low fan speed to activate the AC system. Power is then routed through the thermostat which is what
activates/de-activates the AC pump clutch.

If you have 12V inside the car, check that the AC pump clutch wire has 12V when the AC is running.
If no, then check to see if the filter drier(black canister normally, new ones are raw aluminium), about 8" long and about 3" in diameter
with a little sight glass in the top of it, has a pressure switch in it. If yes, then you may have low/no gas,
in which case the clutch on the pump will not activate - to protect the pump.

If no, you don't have a low pressure switch in the system, then still check for 12V to the pump. If you have 12V to the pump
and it still doesn't work, then either the field coil( this is what energises and pulls the clutch in) or the pump are FUBAR! :(


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 Post subject: Re: Cosmo knob question?
PostPosted: Thu May 24, 2012 3:17 am 

Joined: Thu May 24, 2012 3:09 am
Posts: 2
zionfarm wrote:
la23srx4 wrote:
Its you air conditioning cool to cold control,i have a identical knob in my Rx4 in witch a/c works great !
Counterclock wise cool - Clock wise cold.
Cheers

J


I was thinking of this also. But for some reason my AC does not work and I'm going to hot ass Arizona.


a great help to my car. thanks for the two of you for posting it.

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 Post subject: Re: Cosmo knob question?
PostPosted: Fri May 25, 2012 9:51 am 
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Joined: Sun Dec 27, 2009 8:03 pm
Posts: 331
Location: Tucsan AZ / Davis-Monthan AFB / St.Croix Virgin Islands
philip wrote:
Yep, definitely AC thermostat control. The thermostat has a capillary tube that is positioned
either inside the evaporator coil or in front of it. Once the set temperature is reached the thermostat
cuts power to the AC pump until the temperature rises again and reactivates the pump.

If your AC isn't working, check fuses to internal blower fan. Generally accessory power is taken from
low fan speed to activate the AC system. Power is then routed through the thermostat which is what
activates/de-activates the AC pump clutch.

If you have 12V inside the car, check that the AC pump clutch wire has 12V when the AC is running.
If no, then check to see if the filter drier(black canister normally, new ones are raw aluminium), about 8" long and about 3" in diameter
with a little sight glass in the top of it, has a pressure switch in it. If yes, then you may have low/no gas,
in which case the clutch on the pump will not activate - to protect the pump.

If no, you don't have a low pressure switch in the system, then still check for 12V to the pump. If you have 12V to the pump
and it still doesn't work, then either the field coil( this is what energises and pulls the clutch in) or the pump are FUBAR! :(


Wow I must say you hit the nail on the head or what ever that saying is.
Thank you so much for the insite my good my good man.

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 Post subject: Re: Cosmo knob question?
PostPosted: Sat May 26, 2012 2:01 am 
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Joined: Mon Mar 15, 2010 4:37 am
Posts: 177
Location: Ballarat
If the info helps you getting your A/C to work, then I'm happy!
Once you've had working air con in your car, you don't willingly live without it - especially in hot weather or its de-mist function in cold weather! :D


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