[RE-wrenches] Trace 4024 cutting out

[Dave Angelini Offgrid Solar]

Hi Bill,

Sounds like an intermittent field effect transistor in the power bridge. I
use the Schneider XW guy up in Oregon but I do not know if he works on the
old Trace gear. If you strike out, drop me an email and I will find it as I
never need him.

 They do not last forever and there are a ton of them with various issues
on ebay so beware. I just went thru a few with a die-hard old client that
would not modernize and bought old spares. He ended up paying me alot of
hours for me to say I told you so. It was a really nice drive 4 times....

Dave Angelini Offgrid Solar
"we go where powerlines don't"
http://members.sti.net/offgridsolar/
e-mail offgridsolar at sti.net
text 209 813 0060

On Sun, 17 Oct 2021 21:11:04 -0700, frenergy <frenergy at psln.com> wrote:
> Hey Folks,
> 
>              I haven't seen this one until yesterday.  Customer with a
> 20 year old Trace SW4024 called.  I've been servicing this reliable 
> system for the last 8 years.  He said after a delay the power shuts off 
> when a moderate load comes on after 5-15 seconds, then back on, then 
> off.....  Light loads no problem, the power stays on.  The inverter 
> stays on the entire time (yellow light and that famous audio buzz) but I

> hear a relay? inside the left side of the wiring section with each 
> change of on-off, off-on state. I assume its a repair to a service 
> shop.  Ideas? Recommendations for repair shops?  I haven't been getting 
> a response from the Solar Cowboyz in Grass Valley.
> 
> Thanks,
> 
> Bill
> 
> Feather River Solar Electric
> Bill Battagin, Owner
> 4291 Nelson St.
> Taylorsville, CA 95983
> 530.284.7849
> CA Lic 874049
> solar powered since 1982