3.3v and led's not lit, but 5v light is on

[joleep]

I have a couple LE that when I plug them in I only get 5v lit.  Are there any simple issues that could cause the 3.3 and LED's to  not light up?

[Mickpat]

Does the LE function?  Might just be the LED placed in backwards with the wrong polarity.

[joleep]

I figured out that it is too cold.  I put a sunflower heater up next to it for about 5 minutes and then plugged it in and it works fine. 

[rm357]

Some folks recommend putting a small light in the box with the LE in colder locations. Something like a C7 or C9 connected directly to the power input.

Here in Georgia, we don't have those issues...