Cracks on the plate above the FETs, Should I be concerned?

Started by Photowhit, December 12, 2017, 08:31:55 PM

Previous topic - Next topic

Photowhit

Hi I've been figuring out using a single MNGP and finally found a site to host photos.

While I was doing a lot of swapping of panels and I discovered the panels on the right hand side of the Classic that I believe covers the FETs has cracks in it. Pretty much between every screw head. Should I be worried? Looks like a red cover is used now, perhaps this was a problem? If it's just cosmetic, I'm fine with that. Photo below;

Home system 20 - 200watt Evergreen, E-Panel, 2-Classic Lite 150s up and running and 14 Suntech 185watt panels, and another Classic Lite in a dark room. Cabin system 8-115watt 12V, 6 - 170-5watt 24v, Pulse/Trace PC250 Power Center, 800AH 24V forklift Batt, ProSine 1800 watt (24v) inverter.

ClassicCrazy

How old is your Classic ?
I sent mine in for the 5 year recondition plan and they replaced those hold downs, the fans, and I think maybe some capacitors .
Trying to remember what they charge for that $150 ?  but then the warranty is also extended two more years. I don't think mine were cracked like yours are when I sent it in .

I guess I would check with Midnite to see if that is warranted now because of the cracks.

"MidNite Solar offers an extended warranty for all the Classic MPPT charge controllers. Six months prior to the end of the warranty period customers can ship their Classic back to MidNite Solar with a check for $147 dollars plus shipping and we will replace any wearable parts and do a general tune-up. This will extend the warranty by 2 additional years. "

Larry



system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system 2
 5s 135w Kyocero , 3s3p 270w Kyocera  to Classic 150 ,   8s Kyocera 225w to Hawkes Bay Jakiper 48v 15kwh LiFePO4 , Outback VFX 3648 inverter
system 3
KID / Brat portable

KyleM

Those cracks are normal.

There should have been a red sticker stating  " Torque FET clamp to 18 in-lbs.Some cracking is normal and will not affect performance." 

Kyle Mc

Photowhit

Home system 20 - 200watt Evergreen, E-Panel, 2-Classic Lite 150s up and running and 14 Suntech 185watt panels, and another Classic Lite in a dark room. Cabin system 8-115watt 12V, 6 - 170-5watt 24v, Pulse/Trace PC250 Power Center, 800AH 24V forklift Batt, ProSine 1800 watt (24v) inverter.

binkino

My 2 Classics have the same cracks, but as long as they do their work....

I am sure the magic smoke will let me know one day, if not :D

PV-OUTPUT: http://pvoutput.org/list.jsp?id=38617
Classic Lite 200 + Classic 200 + Easun ISolar-SMX-II-5.6KW + 12x240Wp + 12x255Wp + 2x10kWh LFP
http://a68k.de/Solar/Monitor_LC2.php