Reviews:
 ·AT&T U-Verse
| 04 Mercury Grand Marquis AC/Heater problem We have a 04 Grand Marquis with 130k miles, and all of the sudden today, there is no air conditioning, heat, or defroster. None of them work. I can adjust the tempature, and the backlight still works. Could it be a fuse? Or could I have to replace the whole AC unit? Thanks in advance.
--
No Victim=No Crime |
|
 mattmagPremium,ExMod 2000-03
join:2000-04-09
NW Illinois
kudos:3 |
Please define "none of them work"?
Do you mean the blower fan is not blowing any air on any setting?
|
|
Reviews:
·AT&T U-Verse
| said by mattmag:Please define "none of them work"?
Do you mean the blower fan is not blowing any air on any setting?
Yes. I can press the Ac, Max Ac, and set it to any temp, and nothing blows. It was working fine yesterday, and all of the sudden when I turned the car on this morning they didn't work. Still doesn't work.
--
No Victim=No Crime |
|
 JuggernautIrreverent or irrelevant?Premium
join:2006-09-05
Everywhere
kudos:1 | Ok, the blower (fan) doesn't work. Fuses would be the first thing to check. |
|
guppy_fishPremium
join:2003-12-09
Lakeland, FL
kudos:1 | reply to billydunwood
Is it a digital display? , if so it might be the control head |
|
|
|
mattmagPremium,ExMod 2000-03
join:2000-04-09
NW Illinois
kudos:3 | reply to billydunwood
I would highly suspect a wiring issue (bad connection, loose, corroded) at the blower motor or a fuse has opened. Check the fuses first, if you have access to a 12V test lamp, you can make some further checks if the fuse is OK. |
|
 MospawWhat, too soon?Hawaiian Jellyfish
join:2001-01-08
Mile High
kudos:1
All Things Macintosh
Automotive
Rants, Raves, and ..
| reply to billydunwood
These cars have a control unit that is known to go out. Check the fuses first as recommended above to make sure it's not the blower motor.
When you press the different options, A/C, vent, defrost, etc. do you hear anything? You should hear a faint clunk inside the dash as the different baffles are moved into place for the various functions. If you're not hearing that, the control unit itself might be the culprit. |
|
| I pulled out 3 fuses related to the ac/heater, and put them back in, and now it works like before, it defaults to the defroster. I will need to get a temp. Control unit to fix that problem
--
No Victim=No Crime |
|
