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DIY recharge A/C: how much different (if any) Is procedure on Leaf than regular ICE?

Posted: Wed Jul 29, 2020 12:22 pm
by ldallan
>> From your description, it sounds like it may be low on refrigerant

Sorry if this has been asked before.

Our 2015 base model Leaf with 52K miles is not putting out any cold air from the cabin vents. I thought I would try using a recharge kit with R134+ that includes sealant before taking the vehicle to the dealer.

I've watched several YouTube videos, and the procedure seems doable (famous last words?). However, I thought I would first check on this forum to see if the procedure is different, since there isn't an engine running that is turning the compressor.

Thx ...

Re: DIY recharge A/C: how much different (if any) Is procedure on Leaf than regular ICE?

Posted: Wed Jul 29, 2020 4:59 pm
by GerryAZ
I would not use conventional "sealant" in the system because the compressor is hermetically sealed and runs on traction battery voltage so the refrigerant and lubricating oil must be compatible and have adequate electrical insulating qualities to avoid battery ground isolation issues. The system in the LEAF is more like a high-efficiency, variable-speed home system except the supply voltage is about 400 volts DC instead of 240 volts AC.

Re: DIY recharge A/C: how much different (if any) Is procedure on Leaf than regular ICE?

Posted: Thu Jul 30, 2020 8:29 am
by Lothsahn
ldallan wrote:
Wed Jul 29, 2020 12:22 pm
>> From your description, it sounds like it may be low on refrigerant

Sorry if this has been asked before.

Our 2015 base model Leaf with 52K miles is not putting out any cold air from the cabin vents. I thought I would try using a recharge kit with R134+ that includes sealant before taking the vehicle to the dealer.

I've watched several YouTube videos, and the procedure seems doable (famous last words?). However, I thought I would first check on this forum to see if the procedure is different, since there isn't an engine running that is turning the compressor.

Thx ...
My understanding is that the Leaf does not use r134a, but uses ND11. You would absolutely not want to put the wrong refrigerant in the car.

Re: DIY recharge A/C: how much different (if any) Is procedure on Leaf than regular ICE?

Posted: Thu Jul 30, 2020 11:14 am
by cje
My 2013 S model uses R134a refrigerant and AE10 oil.

Re: DIY recharge A/C: how much different (if any) Is procedure on Leaf than regular ICE?

Posted: Sat Aug 01, 2020 9:19 am
by ldallan
I looked under the Leaf's hood, and found a decal indicating the A/C uses HFC134a refrigerant and AE10 non fluorescent oil

Re: DIY recharge A/C: how much different (if any) Is procedure on Leaf than regular ICE?

Posted: Sat Aug 01, 2020 9:54 am
by GerryAZ
ldallan wrote:
Sat Aug 01, 2020 9:19 am
I looked under the Leaf's hood, and found a decal indicating the A/C uses HFC134a refrigerant and AE10 non fluorescent oil
S uses AE10 oil while SV and SL (with heat pump system) use ND11 oil. Both systems use HFC134a refrigerant. I would not use leak detecting dye and/or sealant because they could reduce the dielectric strength (electrical insulation) level of the refrigerant system.

Re: DIY recharge A/C: how much different (if any) Is procedure on Leaf than regular ICE?

Posted: Sat Aug 01, 2020 10:07 am
by cje
Idallan- best let a shop handle the a/c charge.
Reason being they will at the same time check for any leaks and repair if necessary.
In addition they will recharge with the correct amount of Freon and oil.
Something that you can't accomplish with the DIY can.

Re: DIY recharge A/C: how much different (if any) Is procedure on Leaf than regular ICE?

Posted: Sat Aug 01, 2020 10:09 am
by cje
Idallan- best let a shop handle the a/c charge.
Reason being they will at the same time check for any leaks and repair if necessary.
In addition they will recharge with the correct amount of Freon and oil.
Something that you can't accomplish with the DIY can.

Re: DIY recharge A/C: how much different (if any) Is procedure on Leaf than regular ICE?

Posted: Sat Aug 01, 2020 10:18 am
by Oilpan4
I would pull out all the refrigerant and then charge it.
The leaf doesn't like to be over charged.