[Elecraft] K3 Attenuator Turning Itself On

[Dennis]

Don

I know that the preamp and attenuator settings are remembered per band.

However, if I am on 160M and turn the attenuator off,  it turns itself 
back on
within 2 seconds.  If I am on 80M and I turn the preamp on, it will
turn itself off within a couple of seconds.

I'm trying to find an explanation for this other than an excessive 
strong signal.

Dennis W1UE