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It was working fine before but somehow I thought I could make it even colder....(I'm such an idiot for messing with something that was'nt broke) Any ideas as to why my a/c does'nt work, & if you can explain why overcharging the a/c system is not good. Thank you

2006-07-13 09:40:57 · 9 answers · asked by RUCKUS 2 in Cars & Transportation Maintenance & Repairs

9 answers

tibo49 is most likely correct. Modern A/C systems have both a "High Pressure" and "Low Pressure" cut -out switch in the system to protect the system from damage (ie, overcharge or undercharge). I would advise you to take the vehicle to an A/C specialty shop, and have them evacuate the system, and charge it to the proper level. then they can check for any damage that may have been done. If you're lucky, the High Pressure cut-out switch did its' job, and you'll be back on the road. FWIW, it's very difficult to add the proper amount of R134a without the proper equipment. JMHO. HTH!! Good Luck!!

2006-07-18 09:16:40 · answer #1 · answered by lugnutz59 5 · 1 1

some people are idiots forget all other previous answers especially the 60 pound one

first check your radiator fan if it isn't working the pressure will climb really high and you get hot air

i assume you have gages with fans on press should be 40 t0 60 low side and 200 to 225 high side

too high pressure doesn't allow for blowing off the heat properly
and the low side wont get low enough to get cold

next run cold water over the condenser in front of the radiator does this help??

2006-07-13 12:01:06 · answer #2 · answered by mobile auto repair (mr fix it) 7 · 0 0

BECAUSE WHEN YOU OVERCHARGED THE SYSTEM YOU BLEW OUT THEORIFICEW(THE RESTRICTOR BETWEEN THE HIGH AND LOW PRESSURES.
(sorry about the caps) i make a pretty good living off of people like you who deep down inside just can't leave well enough alone. you are gonna pay out the **** for the damage you did. just another reason why you are required by law to be certified in mobile air conditioning. it is also a violation of law to release the old freon to the atmosphere.good luck with getting all the crap off of you after steping off in it

2006-07-13 09:55:02 · answer #3 · answered by Anonymous · 0 0

I can't tell you exactly why, but I know overcharging the system is both dangerous and detrimental. You will now have to get the system evacuated and tested in a professional shop.

2006-07-13 09:43:46 · answer #4 · answered by Jack 5 · 0 0

You have an overpressure switch built into the system. You probably need to let some of the freon out to get the compressor to cycle back on. Hopefully, you have a set of guages to use?
And hopefully you did not blow the seals on the compressor because that is serious $.

2006-07-13 10:49:22 · answer #5 · answered by Tim B 4 · 0 0

pressure is suppose to be somwhere around 20-30 lbs if you didndt let some out before you added more you could of put 60 lbs and stressed your ac

2006-07-13 09:43:24 · answer #6 · answered by Jason D H 2 · 0 0

If you overcharged it, you could have caused a leak in the tubing.

2006-07-13 09:42:17 · answer #7 · answered by Kats 5 · 0 0

it doesn't depend on overcharging
read the manual to operate your a/c correctly.

2006-07-13 09:43:13 · answer #8 · answered by knowbuddycares 3 · 0 0

you blew out the compessor....$500+ now to fix

2006-07-13 09:42:00 · answer #9 · answered by bobsled 5 · 0 0

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