I installed some Brand New, 10 year old
Navico instruments that were purchased as a
boat show deal,
depth sounder and
knot meter. Today when I went to power them up and test to confirm function the
knot meter display will not show any reading when I spin the paddle
wheel by hand, as the
boat is
on the hard I am wondering If the sending unit has to be submerged to
work or am I having a
hardware problem.