sujeeva
Posts: 2
Joined: Mon Dec 24, 2018 8:57 pm
Delivery Date: 25 Dec 2018
Location: Colombo
Contact: Website Facebook Skype

Onboard charger capacitors failed

Sun Feb 24, 2019 9:15 am

ZEO 2012. Car on and go to driving mode. But cannot charge using AC charger or DC charger.
DTCs P3173, B2631 Sunload sensor, B2840 On board charger
Cleared errors. plugged AC charger. The car recognized the charger and started to charge. But fail after 5 seconds from the time when the AC charger plugged in.
Scan the car to get B2840 962E and P317 00C0. I did that several times, but it got the same result.
Some times, P3173 cannot clear. Several times, sometimes it gets cleared.

Tried DC Fast Charger. It went all charging sequences. But the charger did not got current request messages to inject current. So, the fast DC charger stopped working.
After that, the car showed errors B2840 962E , P317 00C0 and B29C1 9428. Tried several times, but failed.

Then disconnect the onboard charger of the vehicle and opened covers. Noticed that there are two burnt capacitors. No other burning signs.
Repairing of the onboard charger has not been guided b manufacturer, but decided to replace the burnt capacitors since the cost of even a used onboard charger is costly.
1. Has any done this before?
2. What could have caused this?
3. Will the replacement of Capacitors be successful?
GoEV
Sri Lanka

Oilpan4
Gold Member
Posts: 938
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: Onboard charger capacitors failed

Sun Feb 24, 2019 9:32 am

I would start with the capacitors.
I'm assuming they are polarized electrolytics.
Got any numbers for the voltage and microfarads?
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

sujeeva
Posts: 2
Joined: Mon Dec 24, 2018 8:57 pm
Delivery Date: 25 Dec 2018
Location: Colombo
Contact: Website Facebook Skype

Re: Onboard charger capacitors failed

Mon Feb 25, 2019 7:33 pm

Oilpan4 wrote:I would start with the capacitors.
I'm assuming they are polarized electrolytics.
Got any numbers for the voltage and microfarads?
Thanks!
They are non Polarize capacitors. One is 1.0uF 275V LE105 and other is 3.3uF 275V LE335
My order will arrive on Friday, any further opinion?
GoEV
Sri Lanka

Oilpan4
Gold Member
Posts: 938
Joined: Wed Jan 09, 2019 10:51 pm
Delivery Date: 10 May 2018
Leaf Number: 004270

Re: Onboard charger capacitors failed

Tue Feb 26, 2019 8:38 am

Hopefully that does it.
2011 white SL leaf with 2014 batt.
Chargers: Panasonic brick moded for 240v, duosida 16a 240v and a 10kw setec portable CHAdeMO
Location: 88103

Relaxe
Posts: 1
Joined: Wed Aug 14, 2019 6:21 am
Delivery Date: 10 Aug 2019
Leaf Number: 019832

Re: Onboard charger capacitors failed

Wed Aug 14, 2019 6:49 am

Any update? I'm really interested to know if it worked!

RustyCOQ
Posts: 1
Joined: Fri Aug 30, 2019 3:46 pm
Delivery Date: 30 Aug 2019

Re: Onboard charger capacitors failed

Fri Aug 30, 2019 4:22 pm

I am also interested in your solution! I opened up my charger and found one very badly burnt.. capacitor? it is so burnt that I can't even tell what it is. I am interested to see if you have pictures? I am trying to find out the part number of the component so that I can order one to replace it.

Charger Model is
296A0 3NA5A

Component that is burnt is the large block component next to the filter inductor on the bottom board.

goldbrick
Posts: 634
Joined: Tue Aug 01, 2017 3:33 pm
Delivery Date: 01 Aug 2017
Leaf Number: 311806
Location: Boulder, CO

Re: Onboard charger capacitors failed

Fri Aug 30, 2019 8:49 pm

Just FYI, there are lots of types of capacitors and I wouldn't be surprised if this is one that is not readily available 'off the shelf'. You might want to try to source a new PCBA from someone parting out a Leaf of the same year as yours. While a capacitor may seem like a simple device they are not, especially for high voltage and/or high power applications.

nlspace
Posts: 77
Joined: Mon Jun 05, 2017 10:21 pm
Delivery Date: 06 Jun 2017

Re: Onboard charger capacitors failed

Sun Sep 15, 2019 6:28 pm

Here is a datasheet for the AC input filter safety capacitors that the OP mentioned.

Image

@Rusty, we need to see a picture to know which ones you are referring, there are several inductors in the OBC.

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