PXIe-1075 Power Switch Blinking Green, can't find cause

[dondoerres]

One of our PXIe-1075 boxes has a green blinking power switch.  Ordinarily, this would be interpreted as some kind over temperature. However, we can't find anything that seems to be over heated.  The unit runs fine. All the blocks are in place to help air flow, and we have the fans running all the time.  I tried searching these forums for something similar, but can't find anything.  Any suggestions on things to check?

Thanks in advance.

[Captain_K]

Hi Dondoerres,

Does you chassis have the fan filters? NI used to ship the 1075 with fan filters, but stopped back in 2011. Either way, I'd recommend making sure the fans are clean and clear of any debris. If there's a lot of dust built up, it can lower the fan efficiency and cause the chassis to run hot.