[Elecraft] K1 Flickering ATTN LED

[Richard Crispi]

I recently completed building a K1 and have made several contacts.  I'm
still learning the radio and noticed that when I change the LCD display
from normal (nor) to voltmeter (bat) the ATTN LED dimly and rapidly
flickers.  It doesn't matter if I'm using a battery for power or a DC
supply.  When I switch back to S-meter or normal mode the flickering stops.
 Operation is not affected.

Can I just ignore this or does it warrant further investigation?
Regards,
Rich K1YRW