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Honda Accord AC leak
Posted: Thu Jun 12, 2025 7:23 pm
by aerosol
I have a 2011 Honda Accord. The AC worked fine until last summer (2024) and it completely stopped working this May. Refrigerant was put in with dye by auto shop. After 12 days, leak was found at the high side line where it meets the condenser (please see photo below). Could the leak be due to a leaky o-ring? I was told that the leak is likely at the condenser assembly itself instead of the o-ring. Thanks.
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Re: Honda Accord AC leak
Posted: Thu Jun 12, 2025 9:13 pm
by JohnHere
Using a pair of UV goggles and special light in a darkened garage, if you see traces of dye coming from the condenser, you'll have to replace it, along with the receiver/dryer, which might be integral with the condenser.
Likewise, if you see dye coming from the mating surfaces of the "peanut" connector and condenser, the leak might be from a defective o-ring.
In either case, you'll have to recover the existing refrigerant (if any), evacuate, and recharge the system to the manufacturer's specifications, or have it done by a qualified shop.
Re: Honda Accord AC leak
Posted: Fri Jun 13, 2025 6:29 am
by Cusser
aerosol wrote: Thu Jun 12, 2025 7:23 pm
Refrigerant was put in with dye by auto shop. After 12 days, leak was found at the high side line where it meets the condenser (please see photo below). Could the leak be due to a leaky o-ring? I was told that the leak is likely at the condenser assembly itself instead of the o-ring.
The AC shop cannot 100% tell whether the O-ring or condenser is bad,
and knows that if they replace the condenser and the O-ring that you/customer will have cold air.
The shop doesn't want to gamble with YOUR money that only the O-ring needs to be replaced.
I will say - since I do have my own equipment and do my own labor - that if this was my personal vehicle I would try the replacement O-ring first.
Re: Honda Accord AC leak
Posted: Fri Jun 13, 2025 8:17 am
by aerosol
JohnHere wrote: Thu Jun 12, 2025 9:13 pm
Using a pair of UV goggles and special light in a darkened garage, if you see traces of dye coming from the condenser, you'll have to replace it, along with the receiver/dryer, which might be integral with the condenser.
Likewise, if you see dye coming from the mating surfaces of the "peanut" connector and condenser, the leak might be from a defective o-ring.
In either case, you'll have to recover the existing refrigerant (if any), evacuate, and recharge the system to the manufacturer's specifications, or have it done by a qualified shop.
Thank you. The spot shown in the photo is the only place where leak (dye) was found. I thought a bad o-ring is probably the culprit, but the shop told me "leak is likely at the condenser assembly itself instead of the o-ring" and provided me a quote.
Re: Honda Accord AC leak
Posted: Fri Jun 13, 2025 8:21 am
by aerosol
Cusser wrote: Fri Jun 13, 2025 6:29 am
aerosol wrote: Thu Jun 12, 2025 7:23 pm
Refrigerant was put in with dye by auto shop. After 12 days, leak was found at the high side line where it meets the condenser (please see photo below). Could the leak be due to a leaky o-ring? I was told that the leak is likely at the condenser assembly itself instead of the o-ring.
The AC shop cannot 100% tell whether the O-ring or condenser is bad,
and knows that if they replace the condenser and the O-ring that you/customer will have cold air.
The shop doesn't want to gamble with YOUR money that only the O-ring needs to be replaced.
I will say - since I do have my own equipment and do my own labor - that if this was my personal vehicle I would try the replacement O-ring first.
Thank you. I can not do this myself. So, I was wondering how likely the leak is at the condenser assembly itself and whether I should ask them to replace O-ring first.
Re: Honda Accord AC leak
Posted: Fri Jun 13, 2025 9:29 am
by Cusser
The shop has the equipment. I'd ask for a quote to replace the O-ring and replace refrigerant separately, and one if the condenser/drier needs to be replaced. Access to the fitting/O-ring looks straightforward from your photo.
If it really is the condenser leaking, then you'd pay the TOTAL of the two quotes as the refrigerant would need to be removed and replaced a second time. Note that refrigerant removal, evacuation, and replacement is all automated with a special/expensive machine but still would need to be done a second time if the condenser is bad.
Re: Honda Accord AC leak
Posted: Sat Jun 14, 2025 7:03 am
by aerosol
Cusser wrote: Fri Jun 13, 2025 9:29 am
The shop has the equipment. I'd ask for a quote to replace the O-ring and replace refrigerant separately, and one if the condenser/drier needs to be replaced. Access to the fitting/O-ring looks straightforward from your photo.
If it really is the condenser leaking, then you'd pay the TOTAL of the two quotes as the refrigerant would need to be removed and replaced a second time. Note that refrigerant removal, evacuation, and replacement is all automated with a special/expensive machine but still would need to be done a second time if the condenser is bad.
I got both quotes, the price difference is quite large ($240 vs $640). I am wondering how likely the leak is at the condenser assembly itself. The spot shown in the photo is the only place where leak (dye) was found.