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2011年8月3日星期三

AC does not work properly. Please help?

-Rear air blows ice cold but the front does not. When I turn on the low setting, it does not come on at all. I put it in medium or low, it blows like it is on super super low, I cant hear or feel any air like it works for the back.. What could be the problem? 97 AstroIf the rear air works as it should and the front doesn't then you can one of two things wrong. First the damper doors on the front may not be working, not opening up as they should, some now are electric, but most are controlled by vacuum. Second the front blower switch might not be making contact within itself to signal the fan motor to speed up, may need to replace switch if necessary. If rear air is cold system does not need to be charged, check cooling door dampers and front blower switch.
To properly service an A/C system, it's first necessary to find and repair the leak, then evacuate the system with a vacuum pump and add the proper amount of refrigerant and oil to the system.



Without a doubt, the best method is to take your vehicle to an independent shop and have a certified A/C technician service your system.



He will have all the tools, equipment and training to get the job done right the first time without causing damage to your system.



A/C systems are really not user friendly when it comes to DIY repairs since they require specialized tools, equipment and training to do the job properly the first time, without causing damage.



Don't waste your money on those recharge kits you can buy in auto parts stores as they don't deal with the primary problem.



The primary problem is that A/C is a closed system.



If it needs recharged, that鈥檚 because there's a leak. The leak must be fixed before recharging the system or it's pointless.
check the vent hoses in the front then the controls because they may be stuck on the rear setting
Sounds like you might need a new air conditioner.

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