[RE-wrenches] Mouse pee in the SW

Eric.Bentsen at schneider-electric.com Eric.Bentsen at schneider-electric.com
Thu Aug 15 14:49:38 PDT 2013


Hi William,
Fluid intrusion can be very problematic and lead to highly erratic 
behavior, if not a complete shutdown.
If an IC was internally damaged by moisture allowing for an undesirable 
current path, then a chipset may 
solve the issue. It may be a challenge to clean sufficiently unless you 
remove (unsolder) the DIP sockets (big job). 
 However, if other components were damaged, it may require a complete 
control board replacement. 
We still have them available, if you want pricing, email me off list.
eric.bentsen at schneider-electric.com
Rgds,

_____________________________________________________________________________________ 


Eric Bentsen  |   Schneider Electric   |  Solar Business  |   UNITED 
STATES  |   Technical Support Representative 
Phone: +(650) 351-8237 ext. 001#  |   
Email: eric.bentsen at schneider-electric.com  |   Site: 
www.schneider-electric.com/solar  |   Address: 250 South Vasco Rd., 
Livermore, CA 94551 


*** Please consider the environment before printing this e-mail 




From:
"William Miller" <william at millersolar.com>
To:
"RE-wrenches" <re-wrenches at lists.re-wrenches.org>
Date:
08/15/2013 02:37 PM
Subject:
[RE-wrenches] Mouse pee in the SW
Sent by:
re-wrenches-bounces at lists.re-wrenches.org



Friends:
 
I had a mouse take up residency in an SW inverter (SW4024).  It peed on 
the top circuit board and chewed on one wire, at least that we found.  We 
have had this happen before and solved the problem by cleaning and drying. 
 
 
This time the mouse pee was minimal and cleaned off easily and what 
appeared to be throughly.  However we can't get the inverter to work 
reliably.  Sometimes it works and sometimes it does not.  The overload 
light is solid and the error light flashes.  The controls work on some 
menus and not on others.  If I shut the inverter down it won't come back 
on.  I take off the cover, look around, connect and disconnect ribon 
cables and it comes back on, only to go out a day later.
 
I have a spare display and chipset.  I am considering changing out one 
then the other.
 
Any adivce would be appreciated.
 
As always, I am very grateful to all of you.  It seems I have been 
receiving more advice than I have been giving lately so I look forwards to 
the opportuntiy to reciprocate.
 
Sincerely,
 
William Miller

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