[Elecraft] K3 auto notch = N/A

[Gary Smith]

I so rarely work SSB but did try today and needed to remove 
tuner-uppers so I tapped #9/NTCH and one tap gives me N/A where VFO B 
goes & nothing happens. Holding in NTCH gives me manual notch 
function. Looked in the manual under auto notch but nothing saying 
N/A

Can't seem to get auto notch to work. 

Idears?

Thanks,

Gary
KA1J