Deductions & credits

Yes, I installed the residential energy property in a second home.  But the IRS website instructions for from 5695 seem pretty clear that a second home still qualifies for this (just not for home energy efficiency improvements, such as doors, windows and insulation).  I have done all the updates on my MAC and am "up-to-date," and I am still having the issue that Turbotax is disallowing this credit.