SW Fan seems to stay on [RE-wrenches]

[Penobscot Solar]

Hi Travis,
   We have had two SW series inverters do this in the last six months.
Allan's post to check the tech menu is accurate, but won't solve the
problem. The problem in both cases was a faulty temp sensor, both
repaired by Techris in NJ. PITA........
Daryl
Penobscot Solar Design
NABCEP Certified installer

>
>
> Hello All,
>
> I've got a SW4024 that the fan doesn't seem to turn off.  It's in an
> unattended dual inverter off-grid system.  The customer and I've have only
> been there when the ambient temp was 95+ so maybe the fan was just running
> due the ambient being so high.  The loads were very light (0 to less then
> a
> 200 watts) so I'm thinking they didn't warm the inverter up enough to turn
> the fan on.
>
> I know they sometimes fail "on" but never had it happen to me.  Any advice
> would be appreciated.
>
> Thanks in advance.
>
> Travis Creswell
> Ozark Energy Services
>
>
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