Its always worth replacing the internal lithium button battery and then
reseting internal parameters back to factory default.(Page 20 of the
version 5.8 manual, followed by re-entering your polars etc)

Apparently when the battery gets low, some of the stored internal parameter
values in battery backed up RAM can get corrupted and "strange things" can
start to happen.
Replacing the battery and doing this factory reset has fixed my LNAV in the
past.
(This was a tip given to me by the Dickie Feakes the UK service agent.)



At 01:03 17 May 2017, Kurt wrote:
On Tuesday, May 16, 2017 at 9:10:52 AM UTC-5, Kurt wrote:
I have a LNav / meter that has worked fine in the past. Sunday the
meter=
pegged out at 10 knots and stayed there. I cycled the LNav a few times
an=
d it kept doing the same thing. Does anyone have experience with this,
and=
if so, what was the fix? The LNav itself seems to be fine.
=20
Thanks
=20
Kurt

Thanks. I will look at the calibration page, and if that does not fix it,
I=
will send it in for repair.