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tspence
Novice
Jun 24, 2021, 4:21 PM
Post #1 of 13
(1929 views)
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2006 Honda Odyssey - A/C worked fine until today and just stopped. The compressor will not engage. Fuses and relays checked out fine. I have a refrigerant recharge kit that indicates the pressure should be 35-45. The directions say if the pressure is in the red zone (above 65 psi) with the compressor ON to take it in for service.
The pressure I measured was 100 psi with the compressor OFF. I'm not sure what this means? Any ideas for next steps?
Thanks.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 24, 2021, 4:44 PM
Post #2 of 13
(1919 views)
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The first thing you should do is throw that kit in the trash. It will get you in more trouble than it gets you out of..
That gauge doesn't tell you much of anything is the compressor is off. AC repair is not DIY friendly and requires extensive experience and refrigeration knowledge to understand what is happening in the system.
The first thing a competent shop will do is completely evacuate the system and recharge it with the specific weight of charge. That is the only way to know if other issues exist.
Hondas do have a reputation for bad compressor relays.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 24, 2021, 10:45 PM
Post #3 of 13
(1898 views)
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tspence: A/C is a whole course of study, not a can with gauge that's usually inaccurate but says one thing now.
That's just static pressure is good news if even close - that's it. It's just like taking tire pressure now system is off. If that wasn't seeing any pressure, would mean not connecting or system empty - that's it. If 100PSI was close it's about 90F where you took pressure is/was the good part.
Still doesn't say why it doesn't engage so that's where it ends.
That stuff sells like crazy is all that's about NOT helping YOU at all, rather making you think you can just "fill it up" when you don't have a clue yet if it's low yet. Toss that thing or better yet demand your $ back as useless junk is worse it's misleading.
As Hammer said take it to a qualified shop and tech to check it out to find out why. Systems default to OFF for an assortment of reasons, now a 15ish year old a lot of possible things that vary from make to make, year by year.
Trouble is making a mistake can wreck it when it's possibly not all that broken that junk kit WILL BE THE PROBLEM added to the real problem,
T
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tspence
Novice
Jun 25, 2021, 6:01 AM
Post #4 of 13
(1878 views)
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Tom and Hammer - thanks. Looks like it's off to the shop.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 25, 2021, 6:06 AM
Post #5 of 13
(1872 views)
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Just make sure it's a shop that specializes in AC. Too many shops aren't smart enough to know what they don't know.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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Tom Greenleaf
Ultimate Carjunky
/ Moderator
Jun 25, 2021, 6:35 AM
Post #6 of 13
(1865 views)
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Already said it's is it's own trade and specialty. Too many VERY good folks, techs too get stuck on "Just fill it up" like oil level on a dipstick. There isn't one so that ends that,
It's not a rip off to get help - ask up front what the initial guess is or how much to know and quote the fix,
T
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tspence
Novice
Jun 25, 2021, 10:08 AM
Post #7 of 13
(1850 views)
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Thanks both.
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tspence
Novice
Jun 27, 2021, 6:46 AM
Post #8 of 13
(1816 views)
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Just to close the loop on this - it needs a new compressor. Nothing a nice little $1,000 check can't take care of. <Sigh.>
Thanks again.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 27, 2021, 7:08 AM
Post #9 of 13
(1813 views)
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What is the specific issue with the compressor? Is it an electrical problem or a mechanical problem?
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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tspence
Novice
Jun 27, 2021, 5:30 PM
Post #10 of 13
(1796 views)
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The shop didn't tell me and I didn't think to ask. But I have used this shop for years and trust them. He offered me a choice of an OEM unit for $1,300 or an off-brand for $1,000. Given the age of the van, I went with the off-brand and the guy at the shop agreed that was the correct choice.
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Hammer Time
Ultimate Carjunky
/ Moderator
Jun 27, 2021, 5:38 PM
Post #11 of 13
(1794 views)
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That's fine as long as it's new and not remanufactured.
The reason I asked is because if this was an internal, mechanical failure, then you need to change more than just the compressor. When a compressor has an internal failure, debris from inside the compressor travels into the next component which is the condenser and restricts it. That cause the high pressure to go too high and leads to another compressor failure and worse problems.
If it was just an electrical clutch problem, then the compressor alone is fine.
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We offer help in answering questions, clarifying things or giving advice but we are not a substitute for an on-site inspection by a professional.
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tspence
Novice
Jun 28, 2021, 7:37 AM
Post #12 of 13
(1774 views)
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Good info Hammer - thanks.
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