Question about 1999 Buick Regal

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How do I get the digital display on the heat/ac to work?

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  • 160 Answers

There are resistors that need to be changed / resoldered.

search youtube..

i found it once when searching buick instrument cluster repair..

btw..if your odometer lights are out.or dim .its the same fix for the instrument cluster

good luck

Posted on Jan 06, 2011

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Posted on Jan 02, 2017

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1 Answer

I have an 1999 honda accord and the AC lights just keeps blinking what could possibly be the problem


Go to a junkyard and get a AC/heat control board 98 99 2000 are the same, make sure you get the one that match your car cause there is one with no display and there is one that has a digital display .
If you magnify the solder joints of these components you will see which one has broken cold solder joints that need to be re-soldered.
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Jan 06, 2016 | Honda Cars & Trucks

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My digital display for my heating and ac control does not light up but the heater still seems like it is working I don't know ,is there a fuse or relay that will fix this ?


Could be just a loose connection, if you can reach behind the controls you can try wiggling the connector on the back of it, but if this does not help, it will need to be taken to a shop to get repaired. Hope this helps.

Nov 11, 2015 | 2004 Chrysler Pacifica

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94 deville concours ac works sometimes then u here duct door close and digital climate temp numbers go to blank dashes and defrost comes on and is stuck wont turn off then digital numbers come back on


My first guess would be a wiring problem or the controller.
If anything goes wrong with the system, it will default to the defrost mode for safety.

Jul 10, 2012 | Cadillac Cars & Trucks

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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

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My internal heater and AC temperature display has


the problem is rather at the display of the temperature, try to pull it out and to reconnect the plug, if still not working, change the display

Mar 13, 2010 | 2004 Dodge Durango

1 Answer

AC display won't dim after stereo installation


If you disconnect the stereo, does the temp. display go back to working properly? Did you connect the stereo Illumination wire correctly? Are all the other stereo wires connected correctly? Double check what the wires in the aftermarket harness are supposed to be and don't just go by color.

Jun 17, 2009 | 1996 Oldsmobile Cutlass Supreme Coupe

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AC display panel lights


You will need to replace the whole in-dash A/C control unit. Changing the small bulb won't rectify your problem, as the display is LCD.

Mar 12, 2009 | 2001 Chrysler 300M

1 Answer

AC & Temp LED display out


The fuse for the radio/CD/DVD is seperate from the AC/Heat. Open fuse box under hood on right. follow fuse schematic to ac fuse position (note there are two so if not one, then it is the other) use the fuse puller that is in the fuse box, then replace the fuse. Good luck.

Sep 28, 2008 | 2004 Chrysler Pacifica

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