evanmuirow
Posts: 1
Joined: Fri Jan 15, 2021 8:14 pm
Delivery Date: 16 Jan 2021

EVSE got wet, showing constant fault

Fri Jan 15, 2021 8:19 pm

My EVSE got done water inside it during a big wind/rain storm. It was tripping the gfci where I plug it in before I realized this problem. I took the cord caps off the Evse and about half a cup of water came out. Stopped tripping the gfci, buy displayed a fault. I removed the screw caps and the security torx screws and took off the cover, used a blow dryer to dry out the inside of the Evse. Still showing fault. Multimeter indicates good current through the incoming and outgoing wires of the EVSE. Any suggestions why is still faulting, and how to get it working? Any advice is much appreciated, thanks

GerryAZ
Gold Member
Posts: 2858
Joined: Mon Nov 22, 2010 6:47 pm
Delivery Date: 12 Jun 2011
Location: Phoenix, AZ

Re: EVSE got wet, showing constant fault

Fri Jan 15, 2021 9:35 pm

Which EVSE? Any photos?
Gerry
Silver LEAF 2011 SL rear ended (totaled) by in-attentive driver 1/4/2015 at 50,422 miles
Silver LEAF 2015 SL purchased 2/7/2015; traded 8/10/2019 at 82,436 miles
White LEAF 2019 SL Plus purchased 8/10/2019

DaveinOlyWA
Posts: 15423
Joined: Sat Apr 24, 2010 7:43 pm
Delivery Date: 16 Nov 2019
Leaf Number: 319862
Location: Olympia, WA
Contact: Website

Re: EVSE got wet, showing constant fault

Sat Jan 16, 2021 10:35 am

Most EVSEs are water resistant. Guess I know why I don't use caps. Also get CONSTANT comments because my Level 2 cover cap on the car is NEVER on.

I am guessing issue is proximity sensor? I would disassemble and reassemble?
2011 SL; 44,598 mi, 87% SOH. 2013 S; 44,840 mi, 91% SOH. 2016 S30; 29,413 mi, 99% SOH. 2018 S; 25,185 mi, SOH 92.23%. 2019 S Plus; 16,686 mi, 91.51% SOH
My Blog; http://daveinolywa.blogspot.com" onclick="window.open(this.href);return false;

coulomb
Posts: 125
Joined: Thu Oct 09, 2014 5:08 pm
Delivery Date: 07 Mar 2015
Leaf Number: 200445
Location: Brisbane, Australia

Re: EVSE got wet, showing constant fault

Sat Jan 16, 2021 7:04 pm

evanmuirow wrote:
Fri Jan 15, 2021 8:19 pm
used a blow dryer to dry out the inside of the Evse. Still showing fault.
Rain water isn't just H2O, there are contaminants in it. Following water damage, or indeed water deliberately used for cleaning, it's usual to use alcohol to dissolve the contaminants. This will take some time with swabs or a rag.

It's a good idea to spray with a suitable printed circuit lacquer or coating. But hold off until you see it working; otherwise, you may need more cleaning, and you don't want to "seal in" any remaining contaminants or have to remove your new coating to get to them.
2012 Leaf with new battery May 2019. New to me June 2019.

WetEV
Posts: 4156
Joined: Fri May 04, 2012 8:25 am
Delivery Date: 16 Feb 2014
Location: Near Seattle, WA

Re: EVSE got wet, showing constant fault

Sun Jan 17, 2021 12:11 pm

coulomb wrote:
Sat Jan 16, 2021 7:04 pm
evanmuirow wrote:
Fri Jan 15, 2021 8:19 pm
used a blow dryer to dry out the inside of the Evse. Still showing fault.
Rain water isn't just H2O, there are contaminants in it. Following water damage, or indeed water deliberately used for cleaning, it's usual to use alcohol to dissolve the contaminants. This will take some time with swabs or a rag.
Back when I was an electronic tech, the procedure for board failing due to contamination was to wash in regular water, rinse in distilled water, rinse with alcohol, swabbing any suspicious areas, cool air blow dry, then try it.
WetEV
#49
Most everything around here is wet during the rainy season. And the rainy season is long.
2012 Leaf SL Red (Totaled)
2014 Leaf SL Red
2019 eTron Blue

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