AC Pro.. Beware... - Page 2 - LotusTalk - The Lotus Cars Community
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post #21 of 31 (permalink) Old 06-09-2015, 05:43 AM
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For those who do not know, releasing (blowing out) this refrigerant contributes to global warming. While it would be illegal for me as an automotive professional, the very substantial EPA fines do not apply to private parties. This is both ironic and a source of anger in the professional air conditioning repair community.
Wow!!!! Kinda makes me feel guilty about dumping anti freeze down my toilet yesterday. And there was that time I dumped six gallons of used oil in the neighbors yard the night before I moved!

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post #22 of 31 (permalink) Old 06-09-2015, 07:59 AM
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I'm thinking the Elise A/C system requires a much higher pressure than your average system. I say this, because on our '07, when I was troubleshooting the intermittent-working A/C I hooked one of these AC Pro gauges to the low pressure connector and the pressure was literally off the chart. I evacuated the old refrigerant and refilled to the pressure the AC Pro said to and now the A/C doesn't work at all.
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post #23 of 31 (permalink) Old 06-09-2015, 12:44 PM
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Car must be running and AC compressor running otherwise your readings will be high and you just blew out your freon.

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post #24 of 31 (permalink) Old 06-09-2015, 12:44 PM
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Get some qualified professional help. This A/C system is similar to systems in lot of other automobiles, but at this point, even the limited and sometimes misleading information from that AC Pro thingy does not help.

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post #25 of 31 (permalink) Old 06-10-2015, 06:42 PM Thread Starter
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It's always really tempting to feel like you are privy to some insider knowledge, but it's just not true. Your instructor may have been an excellent AC technician, but a scientist he was not.
He may have not even been a good technician.. LOL.. Well I had no idea and that's def good to know..
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post #26 of 31 (permalink) Old 06-10-2015, 08:12 PM
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Get some qualified professional help. This A/C system is similar to systems in lot of other automobiles, but at this point, even the limited and sometimes misleading information from that AC Pro thingy does not help.
In Australia you cannot buy amateur AC recharge kits - refrigerant gasses are only available to qualified people. So there is no choice here but to engage a professional for the recharge bit of any AC maintenance.

Fortunately everything else is fair game
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post #27 of 31 (permalink) Old 06-11-2015, 04:13 AM
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What I'm finding frustrating is, you buy a product with a gauge and expect that gauge to work! Ran for 10 minutes then fan speed increased as mentioned above. EPA goes after the easiest target which in case of freon are the AC techs. Dentists contribute.4% of the mercury in wastewater, but we're an easy target to regulate. The power companies , until recently got away, literally, with murder.
I apparently have a bit too much R134A in system now so will let my dealer hook it up and correct levels tomorrow when I'm there for the spacer. At this point I agree about the systems being available to too many folks. BUt azac soften up a bit about the self serving stuff. The product is available and doesn't necessarily say you should go to confession after use. Consumers expect a product to work and why pay $50-100 when you supposedly can DIY for $25. Can't recycle like oil however I understand.
When initially connected it reads high but when AC is turned on full regardless of fan speed , it settled down to ~30. Why? inaccurate gauge?? Bad directions??

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Last edited by brgelise; 06-11-2015 at 04:26 AM.
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post #28 of 31 (permalink) Old 06-11-2015, 06:29 AM
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What I'm finding frustrating is, you buy a product with a gauge and expect that gauge to work! Ran for 10 minutes then fan speed increased as mentioned above. EPA goes after the easiest target which in case of freon are the AC techs. Dentists contribute.4% of the mercury in wastewater, but we're an easy target to regulate. The power companies , until recently got away, literally, with murder.
I apparently have a bit too much R134A in system now so will let my dealer hook it up and correct levels tomorrow when I'm there for the spacer. At this point I agree about the systems being available to too many folks. BUt azac soften up a bit about the self serving stuff. The product is available and doesn't necessarily say you should go to confession after use. Consumers expect a product to work and why pay $50-100 when you supposedly can DIY for $25. Can't recycle like oil however I understand.
When initially connected it reads high but when AC is turned on full regardless of fan speed , it settled down to ~30. Why? inaccurate gauge?? Bad directions??
Actually, I thought I was being fairly restrained. But then, I am the one who gets to see first hand the debacles when some people use these products. Obviously I see the problems created, not the ones that may work better than they did beforehand.
You do question why you get the same reading regardless of fan speed, fact of the matter is it should vary. Not only that, but you, the user, are not getting half the story anyway. There is also high pressure reading that would be readable with a gauge set. The two readings together, with a correct knowledge of the actual amount of refrigerant in the system and assurance that no air has been introduced with the refrigerant provide much more information to someone who can interpret it.
See, just the facts, not standing on a soapbox at all.

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post #29 of 31 (permalink) Old 06-11-2015, 07:02 AM
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I agree about the 2 gauges, thus why I'm going to let the tech correct things tomorrow. I am typical of learn from experience. How are these faulty products allowed to exist if they cause so many issues?

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post #30 of 31 (permalink) Old 06-11-2015, 02:56 PM
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AZAC thanks for you intervention. I'll know better next time!

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12 Maxda MX-5 Miata GT PRHT True Red/Black leather (LUCY)
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post #31 of 31 (permalink) Old 06-15-2015, 03:30 PM
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Autozone loaned me a vac pump, gauge set, and the special California-only can tap adapter for FREE. Then I bought a can of R134A and read the a couple of different manuals. The stuff you are loaned doesn't generally tell you what you need to know and ambient temperature is all important, so reading a manual is important. The vacuum pump is very good quality, works well, and is great for making sure that the system holds a vac overnight.
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