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My ac/heat control knobs are stuck on my 2005 nissan sentra. How do I fix it?

All three of my air knobs are stuck on different things temperature stuck on heat, speed is stuck on 1, and direction is stuck on dashboard.

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Check the condition of the heater matrix valve under the dash board. Disconnect any motors or cable connections to it and try operating it by hand. If it is stuck, then replace it.

If not stuck, then check motor operation (if climate control model) or cable routing (if manual only).

Posted on Nov 02, 2012

6 Suggested Answers

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Posted on Jan 02, 2017

SOURCE: AC Problem

Sounds like the blend door is stuck. Unfortunately the blend door is buried deep within the dash.

Posted on Aug 02, 2008

  • 85 Answers

SOURCE: Heater/AC only works thru defroster vents on '98 Contour

you prob have a vac leak on the back of the intake. good luck

Posted on Nov 23, 2008

  • 120 Answers

SOURCE: 2005 nissan sentra-air stuck on defrostwont switch to floor or ve

vent door is stuck open

Posted on Feb 14, 2009

  • 1 Answer

SOURCE: Interior lights on climate clontrol knobs don't work

After showing the dealership this site and the problems that others have had. I insisted that they take a look at it and solve the problem. FINALLY, they admitted that there are lights and that basically it is a pain to fix because they need to order a new module. After one day in the shop, I now have lights for the climate controls in my 2005 Jeep Grand Cherokee Laredo. Do not let them tell you that it only is an option with the Limited. It is just flat out FALSE. I was so frustrated with my dealership because this is shady if you ask me, but they did fix it free of charge. Do your research, call JEEP themselves, and provide the dealership with facts and they should fix it. It's ridiculous how much work I had to do to get them to admit that the Laredo also had the option, but it failed. Don't back down!!!!!!!

Posted on Feb 25, 2009

  • 15 Answers

SOURCE: how do replace the temperature control knob light

Go to Radio Shack and head to the back where they have the drawers with the LEDs and mini lightbulbs. Get the model no. 272-1140, mini lamp 1 3/4 hookup leads, 6V, 25mA. It costs about $1.49-$2. When you take apart the HVaC unit from the center console, there's two blue twist out plugs on the top near center right and left of the unit. Twist out the one on the side that has the light out. You'll need a small screwdriver to turn it loose. Study how the wires come out at one end of the blue tube and use a needle point plier to carefully untwist the wires and pull it out from the bulb end. Now insert the new bulb w/ the two wires throught the 2 small holes until they come out the other end. Your new bulb is not a perfect fit, so just push it as best you can. Carefully strip the plastic from the wire leads and wrap it in the same position and re-insert the blue tube-thingy back into its place. Turn on your lights and it should light up again. Hope that helps.

Posted on Mar 14, 2010

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1 Answer

I have a 2005 Nissan murano the a/c compressor comes on and hot air comes out the vents. Please help


Your problem is most likely caused by a jammed AC/Heater temperature control blend door and or blend door electric actuator motor. The door is stuck in the heated air position and can't move to divert the air flow across the cold AC evaporator core. In most cars this problem requires the entire dash assembly be removed to replace the parts.

Jul 14, 2016 | 2005 Nissan Murano

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2005 Nissan Sentra - only blowing hot air from vents. Even when it is set on cold. It is only coming out of the feet vents as well and maybe a little from the defrost. The different air strengths...


is this a new problem or just a new car?
tell what you expect?
no car has perfect venting and never will.

is the problem, temperature lever set to cold
but i get hot air?
yes, then the temperature control is broken
to see why, read the manual, RTM
each car make and models and years, vary.
but there are 3 types.
some use a simple cable, and can just come loose
its all in the FSM.
or
at alldata dot com, its all there.
same thing at mitchels too.
ondemand5 dot com.

Oct 08, 2013 | 2005 Nissan Sentra

1 Answer

Vent control knob on our 2005 Sentra was stuck, made a loud click when turned, and now only dash vents work, no defroster...any solutions for a quick fix?


HERE'S A LINK TO YOUR SET UP,SOMETHING COULD BE BROKE,NOT LETTING YOU TO ADJUST WITH THE SWITCH,THERE ARE CABLES ATTACHED TO THE LEVERS THAT MAKE THEM TURN WHEN YOU TURN KNOB,MAY BE LOOSE,BENT OR BROKE,YOU WILL HAVE TO REMOVE THINGS AND SEE.

Oct 05, 2013 | 2005 Nissan Sentra 1.8

1 Answer

I have a 2002 Nissan Sentra the thermostat opens, changed water pump. the heater still blows cold air .


you may have a problem with heater box. your air/mix door may have an issue. feel the knobs on the control unit. if the cold/heat know feels kinda funny from the other knobs, then thare is a problem with heater box/cables??

Sep 10, 2011 | 2005 Nissan Sentra

1 Answer

Interior thermostat control is stuck in position that it only blows air in floor, regardless whether its on heat or AC. It will blow hot or cold, just wont allow you to change air flow positions. Also...


check fuses and relays. there is an electric motor that opens and closes a "blend air door' that switches from hot to cold. the other lights may or may not be related. Is is very possible that the plug going into the control unit has a bad connection.

Apr 30, 2010 | 2005 Nissan Sentra

1 Answer

My air conditioning is stuck on the vents in my 2005 Nissan Sentra. I turn the knob and it won't change from defrost. Is there an easy fix or will I have to take it to a repair shop?


well if you don't mind hard work,then you must pull out the panel that holds your knob switches and check that the cable has not pulled out from the knob,clip it back into place and you should be fine,otherwise you should take it to a repair shop,good luck

Oct 20, 2009 | 2005 Nissan Sentra

1 Answer

Cold Am . I turned the left knob 45 degree . All i get is HEAT,knob moves


Hi rafis1234,
if you are handy, you can remove the small dash panel where the a/c control knobs are and then you'll access the lever mechanism and most of the time you'll find a rusty lever or someting has jammed the lever.
Cheers

Oct 28, 2008 | 2004 Nissan Sentra

1 Answer

@003 nissan sentra SER


a/c is active when in defrost mode to remove moisture from air. what controls the movement from vent to heat/ or defrost. a lever or switch.

Jul 21, 2008 | 2003 Nissan Sentra

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