CP 4025 Fuser Very Low warning

I have a HP CP 4025 with the warning "Fuser Very Low" on the screen.  I have installed NEW OEM fusers into the printer twice and the warning will not go away or the warning will not reset.  There is no service mode feature to reset the maintenance/Fuser Kit so I am at a loss as to what to do next.  The firmware version is 20140505  07.162.1.  Would an NVRAM reset resolve this problem? Or should I replace the DC Controller?  OR?.....